Vladimir Vladimirovitsch Klitschko^[1] (born 25 March 1976) is a Ukrainian former professional boxer who competed from 1996 to 2017. He held the world heavyweight championship twice, including the WBA (Super), IBF, WBO, IBO, Ring magazine and lineal titles. A strategic and intelligent boxer, Klitschko is considered to be one of the best heavyweight champions of all time.^[5][6][7][8] He was known for his exceptional knockout power, using a strong jab, straight right hand and left hook, as well as excellent footwork and mobility, unusual for boxers of his size.^{[9][10][11][12]}

As an amateur, Klitschko represented Ukraine at the 1996 Olympics, winning a gold medal in the super-heavyweight division. After turning professional later that year, he defeated Chris Byrd in 2000 to win the WBO heavyweight title. Klitschko's first reign as champion ended in an upset knockout loss to Corrie Sanders in 2003, which was followed by another knockout loss to Lamon Brewster in 2004. It was during this time that Klitschko hired Emanuel Steward as his trainer, which began an eight-year partnership that lasted until Steward's death in 2012. In particular, Steward was credited with Klitschko's transition from an aggressive puncher to a more defensively-oriented boxer, much as he had done with Lennox Lewis in 1995 to 2003.

In 2006, Klitschko regained a portion of the world heavyweight championship after defeating Chris Byrd in a rematch to win the IBF and IBO titles. He won the WBO title for a second time by defeating Sultan Ibragimov in 2008. Following his defeat of Ruslan Chagaev in 2009, Klitschko was awarded the Ring and lineal titles, and lastly he won the WBA title from David Haye in 2011. In September 2015, Klitschko was ranked as the world's best active boxer, pound for pound, by BoxRec; in November 2014, he reached a career peak of second best on The Ring's pound for pound list.

Klitschko holds the record for the longest cumulative heavyweight title reign of all time, with 4,382 days as world heavyweight champion, and defeated 23 opponents for the world heavyweight championship, the most in history. Until his loss to Tyson Fury in 2015, Klitschko was recognized as the lineal champion by the Transnational Boxing Rankings Board, while the WBA recognised him as one of its "Super champions", a distinction given to boxers who hold that title in addition to those by other sanctioning bodies in the same division. From 2006 to 2015, Vladimir and his older brother Vitali (himself a former world heavyweight champion) dominated heavyweight boxing, a period typically known as the "Klitschko Era" of the division.^[13][14]

Klitschko was born in Semipalatinsk (now Semey), Kazakh SSR, Soviet Union (now Kazakhstan).^[15][16][17] His father, Vladimir Rodionovic Klitschko (1947–2011), was a Soviet Air Force major general and a military attaché of Ukraine in Germany; he was also one of the commanders in charge of cleaning up the effects of the Chernobyl disaster in 1986 and was afterward diagnosed with cancer. Wladimir's mother is Nadezhda Ulyanovna. He is the younger brother of former WBC, WBO and Ring magazine heavyweight champion Vitali Klitschko, the current Mayor of Kiev.^[18]

Klitschko began training in amateur boxing with Brovary Olympic Reserve School in the late 1980s. In the early 1990s, Klitschko was coached in Poland's Gwardia Warszawa boxing club, where, according to Jerzy Kulej, "He and his brother used to demolish our boys."^[19] In 1993, he won the Junior European Championships as a heavyweight. In 1994, he received 2nd place at the Junior World Championships in Istanbul, Turkey, losing to Cuban Michel López Núñez in the finals.^[20] In 1995, he won the gold medal at the Military Championships in Ariccia, Italy, defeating Luan Krasniqi, who he had lost to in the third round of the World Championships in Berlin, Germany earlier that year. In 1996, he captured 2nd place as a Super Heavyweight at the European Championships in Vejle, Denmark losing to Alexei Lezin in the finals. He defeated Lezin later that year in the semi finals at the 1996 Summer Olympics in Atlanta.^[21] He had an amateur record of 134–6.^[22]

He first achieved world attention at the 1996 Summer Olympics in Atlanta, Georgia. He defeated Paea Wolfgramm to win the Super-Heavyweight gold medal.

Below are the notable achievements of Vladimir Klitschko in the amateur boxing:^[23]

He is announced as "Dr. Steelhammer", a nickname similar to his brother, Vitali, who goes by "Dr. Ironfist." Both brothers hold PhDs^[24][25] in sports science.^[26]

Klitschko turned professional with Universum Box-Promotion in Hamburg under the tutelage of Fritz Sdunek, often being featured on fight cards alongside his elder brother Vitali. After building an undefeated record of 24–0 with 21 KOs, he suffered his first loss to 24–13–1 Ross Puritty, in what was Klitschko's first and only professional fight in Ukraine. Puritty forced Klitschko, who had at that time not gone beyond 8 rounds, to punch himself out. Klitschko began to be overwhelmed in the 10th round and went down twice but was allowed to continue. At the start of the 11th round, with Puritty continuing to land hard punches, Klitschko's trainer, Fritz Sdunek, entered the ring and stopped the fight.^[28] Three years later, Klitschko's brother Vitali stopped Puritty in the 11th round himself. On 18 March 2000, Klitschko fought Paea Wolfgramm, whom he fought previously in the 1996 Super Heavyweight Olympic Finals. In their professional rematch, Klitschko knocked Wolfgramm out in the first round.

On 14 October 2000, in Cologne, Germany's Kölnarena, Klitschko won the WBO Heavyweight Championship from American Chris Byrd by a wide unanimous decision by scores of 120–106, 119–107, and 118–108, flooring his opponent twice. Byrd had previously upset his elder brother Vitali (who pulled out injured during their bout).^[29]

Klitschko registered five successful title defenses, all by TKO over: Derrick Jefferson, Charles Shufford, former IBF champion Frans Botha, former WBO champion Ray Mercer and Jameel McCline.^{[30][31][32][33][34]}

Klitschko suffered an upset TKO loss to Corrie Sanders on 8 March 2003 in Hanover, Germany. Sanders dropped Klitschko twice in the opening round and scored two more knockdowns in the second round before the bout was stopped by the official. The fight was named The Ring magazine Upset of the Year for 2003.^[35]

After winning two minor bouts in Germany and enlisting the services of legendary boxing trainer Emanuel Steward, Klitschko again fought for the vacated WBO title on 10 April 2004, in Las Vegas, against Lamon Brewster. Klitschko sent Brewster to the canvas in the fourth round; however, things turned around in the fifth when Brewster's punches began backing him up. Not defending himself and leaning into ropes for support, Klitschko took a standing eight count. On unsteady legs, Klitschko fell to the canvas after the bell and the referee stopped the fight for his safety.^[36]

Following his loss to Brewster, Klitschko began his journey back towards the top of the heavyweight division. First, he defeated DaVarryl Williamson by technical decision.^[37] The fight was halted because of a Klitschko cut caused by an accidental headbutt. He then knocked out undefeated Cuban contender Eliseo Castillo. Klitschko then signed to fight undefeated power puncher Samuel Peter in an IBF and WBO eliminator. Though Peter scored three knockdowns (two in round 5, one in round 10) Klitschko withstood the Nigerian's power and went on to outbox Peter for the majority of the rounds.^[38]

On 22 April 2006, in Mannheim, Germany, Klitschko defeated Chris Byrd for a second time, this time by technical knockout, in a contest for the IBF and IBO Heavyweight Championships. Referee Wayne Kelly stopped the fight in the seventh round after a knockdown. Byrd beat the count, but his face was battered and bloody, and the fight was waved off.^[39]

He returned in November, defeating Calvin Brock at Madison Square Garden. Klitschko then defeated mandatory challenger Ray Austin on 10 March 2007, at the SAP Arena in Mannheim, Germany by a second-round knockout with four consecutive left hooks to Austin's head.^[40]

Klitschko then avenged one of his previous losses as he defeated Lamon Brewster on 7 July 2007, in Cologne, Germany. Brewster's corner asked the referee to stop the fight at the end of the sixth round. It was later revealed that Klitschko fought most of the fight with a broken middle finger on his left hand.^[41]

Klitschko defeated WBO Heavyweight Champion Sultan Ibragimov at Madison Square Garden in New York City on 23 February 2008 to unify the IBF, IBO and WBO Heavyweight titles. The Klitschko-Ibragimov fight was the first heavyweight unification since Holyfield-Lewis in 1999. The unification clash with Ibragimov proved to be a huge disappointment for fans. Klitschko was very dominant from the first bell. He backed Ibragimov into a corner and proceeded to push down Ibragimov's glove with his left hand so he could not throw a punch. Though Klitschko won every single round, the crowd in New York City began booing after the second round. The boos and jeers increased as the fight progressed in the same fashion. Ibragimov's corner was almost silent from the sixth round onwards, unable to give their man any meaningful advice. Klitschko did not fight again in the United States until 2015 where he defeated Bryant Jennings.^[42]

On 12 July 2008, at the Color Line Arena in Hamburg, Klitschko faced mandatory challenger Tony Thompson, in a good action fight. Klitschko controlled the fight with his jab and right hand; Thompson had his moments but was outworked and out skilled for the majority of the rounds. Klitschko floored Thompson with a right hand in the 11th round and Thompson didn't beat the count.^[43]

Klitschko was scheduled to defend his titles against Alexander Povetkin later in 2008,^[44] but on 25 October, Povetkin withdrew from the fight due to an ankle injury. Instead, Klitschko faced Hasim Rahman on 13 December 2008 and won by TKO. This was the third time Klitschko fought at the SAP Arena in Mannheim, Germany. He dominated the fight, winning every round while making good use of his left jab. From the first bell the difference in physical strength was profound. Rahman seemed unable to withstand Klitschko's punch power. The referee finally called a stop to the one-sided contest in the 7th round after Rahman failed to respond to a series of good shots.^[45][46]

Klitschko was scheduled to face David Haye, who pulled out within weeks of the fight complaining of a back injury. Salvaging 20 June 2009 date and venue, Klitschko instead retained the IBF, WBO and IBO Heavyweight titles and also won the vacant Ring magazine heavyweight title by defeating replacement opponent and Ring No. 3 ranked Ruslan Chagaev when Chagaev retired after an onslaught of punches towards the end of the ninth round. There was a total of 61,000 fans in attendance at the Veltins Arena. As Chagaev was WBA Champion in Recess, the title was not on the line.

Klitschko's win over Chagaev was seen as one of his most impressive performances in the ring. He controlled the tempo of the fight from the very beginning and hit Chagaev at will with the jab. He hit Chagaev with several hard right crosses and never allowed him to build momentum. Towards the end of the second round Klitschko caught Chagaev off-balance and sent him to the canvas. Chagaev recovered but was dominated thereafter. This win had added significance because even though the WBA title was not on the line, many saw Klitschko as the rightful champion.^[47][48]

On 9 December 2009, Klitschko's management group, K2 Promotions confirmed that a bout with Eddie Chambers has been agreed to take place in Germany on 20 March 2010. This mandatory title defense, originally scheduled for December 2009 had to be delayed due to a hand injury that Klitschko sustained in training that required surgery.^[49]

Klitschko defeated Chambers by knockout five seconds before the end of the final round. He was criticized between rounds by his trainer Emanuel Steward for not fighting aggressively enough and began punching more often during the final round than he had done before which eventually led to his left hook hitting Chambers to the forehead. The punch made Chambers fall forwards and lost consciousness for an extended period of time. The referee stepped in and called an end to the contest instantly.^[50][51][52]

Following the match with Chambers, a unification fight between Klitschko and David Haye, who, as of May 2009, had held the WBA title, appeared to be in the offing. Klitschko called out the Briton on YouTube in April 2010, stating, "I want to send this message to boxing fans and directly to David Haye. David, you've bitched out on fighting both Klitschko brothers twice already and now's the time to make it happen. On behalf of the boxing fans around the world, I am officially calling you out to fight me. You can't run away from me forever and you need to follow through with this fight if you want to be respected. I'm ready. What're you waiting for?"^[53][54]

Haye's trainer, Adam Booth, indicated that Haye would be willing to accept the challenge.^[55] Both sides began negotiations for a potential fight and the bout was targeted for September.^[56] As the negotiations continued to move forward,^[57] the unification fight between Klitschko and Haye was expected to take place in Germany rather than England.^[58][59] The IBF set a deadline to end negotiations on 17 May. A few days before the deadline to make the unification bout, Haye said he was interested in fighting the older Klitschko, Vitali, rather than Wladimir.^[60] The fight did not materialize and Klitschko was set to take on mandatory challenger Alexander Povetkin. On 17 May 2010, the 30-day period of negotiation began for Klitschko to defend his championship against Povetkin.^[61] Within this period, discussions to make a fight with Haye were still ongoing.^[62]

The bout between Klitschko and Povetkin was initially tentatively scheduled to take place in Frankfurt, Hessen, Germany, on 11 September 2010. In July 2010, it was confirmed that the bout would be taking place in Frankfurt.^[63] Samuel Peter replaced Povetkin for the scheduled fight. Klitschko faced Peter for a second time, as they had fought in 2005 previously. Peter fought Klitschko on 11 September 2010, for the Ukrainian's IBF, WBO and IBO Heavyweight titles. Klitschko won again, by knocking out Peter in the 10th round.^[64][65]

Peter weighed in at 241 pounds, two pounds lighter than their first fight. Klitschko came in at a career heavy of 247 pounds. Peter started the fight very aggressively and caught Klitschko with a good left hook in the opening minute, although Klitschko ended the round well. Peter was caught with three hard right-hands in the second round, one of which seemed to stun him. Peter tried to duck under the Klitschko jab, but was being tied up on the inside. After four rounds, the fight became one-sided in Klitschko's favour. Peter's right eye was closing and he was taking heavy punishment. After the ninth round, Peter's trainer Abel Sanchez said he would give him one more round. Emmanuel Steward also implored Klitschko to be more aggressive. Peter swung wildly in the tenth and Klitschko put him down with a concussive combination. Referee Robert Byrd did not start a count and waved the fight off, awarding Klitschko the win by knockout. Klitschko, however, was set to fight Dereck Chisora on 11 December, but the fight was later called off on 8 December due to Klitschko tearing a muscle in his abdomen.^[66][67]

On 5 January 2011, it was announced that Dereck Chisora would get his fight with Klitschko. This enraged David Haye's trainer Adam Booth, who described the move as a "disgrace" on a heated live phone-in with Sky Sports News. Booth alleged Haye had met every single one of Klitschko's demands.^[68] The fight against Dereck Chisora was rescheduled for 30 April 2011 and was going to take place in SAP Arena, Mannheim.^[69] However, on 4 March, it was announced that Klitschko had pulled out of the fight due to not being fully recovered from a torn abdominal muscle. On 5 March, it was instead announced that the highly anticipated fight against David Haye would take place on 2 July 2011.^[70] The fight was contingent on Klitschko's recovery from a torn abdominal muscle injury. The contract was written so that if Klitschko was not fully healed, then Haye would fight his brother, Vitali.^[71]

Klitschko fought David Haye in a heavyweight unification fight for the WBA (Super), WBO, IBF, IBO and The Ring Heavyweight titles. The fight took place at the Imtech Arena, Hamburg, Germany on 2 July 2011. Klitschko and Haye agreed to a 50-50 split of the purse and Haye was allotted 7000 seats at the venue.^[72][73][74] Klitschko dominated the fight, statistically outlanding Haye nearly 2 to 1. Klitschko won by unanimous decision, the three judges scored it 117–109, 118–108, and 116–110 all in favour of Klitschko. Haye revealed afterwards that he had a broken toe.^[75]

After winning the WBA title, all of the major Heavyweight titles were in the hands of the Klitschko family. Wladimir and Vitali became the first and only pair of brothers to hold all of the heavyweight titles simultaneously.^[76]

On 6 October 2011, Klitschko announced his next fight. It was originally to be on 10 December 2011 against the former two time unified World cruiserweight champion, French Jean-Marc Mormeck (36-4, 22 KOs). The fight would have taken place at Esprit Arena, Düsseldorf.^[77] It was to be Vladimir's first title defense of the WBA (Super) belt, he won against David Haye. The fight was billed Alle Gürtel. Ein Champion. (All belts. One Champion).^[78] However, on 5 December 2011, the fight was cancelled because Vladimir checked into a hospital to have a kidney stone removed. After the removal operation he suffered from fever and inflammation.^[79] The fight was rescheduled for 3 March 2012, with Klitschko dominating and knocking out Mormeck in the fourth round.^[80] CompuBox showed that in the 10 minutes and 12 seconds the fight lased, Klitschko landed 39 of 135 punches thrown (29%) and Mormeck landed just 3 of 19 thrown (16%). Mormeck failed to land anything in rounds 1 and 4.^[81]

On 4 March 2012, Klitschko stated that he would next fight his mandatory challenger Tony Thompson (36-2, 24 KOs) in a rematch from their first fight in 2008. At the time, he stated that the newly opened Barclays Arena in New York were interested in showcasing a Klitschko brother. Since they last fought, Thompson recorded 5 straight wins, all by knockout.^[82] A purse bid was set by the IBF, where Klitschko, upon request, would receive 85% of the purse split, compared to the usual 75%.^[83] The fight was confirmed to take place at the Stade de Suisse in Berne, Switzerland on 7 July.^[84] In an interview, Klitschko admitted that Thompson was not his first choice and that he had rather fought someone he had not fought before.^[85] Klitschko stopped Thompson in the sixth round after putting him to the canvas with flush right hand shot. Thompson was also down after Klitschko landed a big right hand. Thompson managed to beat the count just as the round ended. It was his 12th consecutive title defense, the third-most in heavyweight history.^[86][87] CompuBox stats showed Klitschko landed 51 of 121 total punches thrown (42%) and Thompson landed only 25 of 183 thrown (14%).^[88]

There was first mention of a potential Klitschko vs. Mariusz Wach (27-0, 15 KOs), fight in August 2011 when Klitschko's team approached Wach's promoters a fight., however nothing materialized.^[89] Wach's promoter Global Boxing stated that it was Klitschko's advisor Shelly Finkel that contacted them. Bernd Boente denied these claims.^[90] In August 2012, serious negotiations took place for the fight. A date in November was considered with the venue likely to be in Hamburg, Germany. Terms were fully agreed within days of the negotiations for the fight to take place 10 November.^[91][92] Klitschko revealed he would train with Johnathon Banks due to Steward recovering from a bowel operation.^[93][94] On 25 October, Steward passed away at the age of 68.^[95] The fight was the first time in his 16-year pro career he had faced an opponent taller than himself.^[96] At 2.02 metres tall, with a reach of 2.08 metres and weighing 251 pounds, Wach was 4 centimetres taller than Klitschko with a reach two centimeters longer.^[97][98]

On fight night, at the 02 World Arena, Klitschko dominated and retained his belts via a one sided unanimous decision. The three judges' scored the fight 120–107, 120–107, and 119–109. The bout opened with a battle between jabs which was won by Klitschko, who was following his jabs with his signature straight right. Wach managed to wobble Klitschko in round 5 but failed to take advantage. Wach also showed a great chin later in the fight when Klitschko began to let his hands go more landing thunderous shots.^[99][100] During the course of 12 rounds, Klitschko landed 274 of 693 punches landed (40%), whilst Wach landed 60 of his 308 thrown (19%).^[101] After the fight, there was allegations against Wach, that he had used steroids.^[102]

Days before the Klitschko vs. Wach fight took place, it was revealed that Team Sauerland offered Klitschko 5 million euros for a possible fight against then-WBO cruiserweight champion Marco Huck in the future. At the time, Huck was preparing for a title defence against Firal Arslan.^[103] Klitschko's manager Bernd Boente turned down the offer stating money was not the issue. The reason the fight would never get made was due to the fact that the Klitschko's had a contract with German television network RTL and Huck was signed with their rival network ARD.^[104]

At the end of 2012, the World Boxing Association ordered its super-champion Klitschko to fight WBA regular-champion Alexander Povetkin of Russia by 24 February 2013,^[105] but the two sides couldn't reach an agreement.^[106] WBA let Klitschko have another voluntary title defence before taking on Povetkin, but there should have been a signed contract with Povetkin before 28 February, with a new deadline for their bout no later than 31 July.^{[107][108][109]}

On 5 March 2013, K2 Promotions announced that Klitschko would fight another undefeated contender, Italian Francesco Pianeta, on 4 May at SAP Arena in Mannheim, Germany.^[110] Klitschko had received criticism in regards to past opponents. Pianeta was no different. Speaking to ESPN, he said, "I'm getting always criticised with my opponents, it doesn't matter are they well known or not so much and it's always very difficult to fight against someone that is not known because you are always getting these critics." Pianeta said it was the biggest experience of his life, but not his biggest fight. He went on to say he won his biggest fight against cancer in 2009.^[111] From the start, he systematically broke down the Italian, consistently landing flush straight right hand shots. He dropped Pianeta with a right hand in round four, a left hand put Pianeta down in the fifth; the fight ended at 2:52 in round six when Klitschko put Pianeta down for the third time.^{[112][113][114]} According to CompuBox Stats, Klitschko landed 116 of 277 punches thrown (42%) and Pianeta landed 24 of 104 thrown (23%), an average of 4 punches landed per round.^[115]

Promoter Vladimir Hryunov won the right to promote Klitschko vs. Povetkin with a purse bid of $23,333,330 and Russian businessman Andrey Ryabinsky putting up the money. Failed bids made were from K2 Promotions ($7,130,000) and Povetkin's promoter Sauerland Event ($6,014,444). It allowed Ryabinsky to dictate the location of the fight and guaranteed the fighters the biggest purses of their careers. Based on being entitled to 75 percent of the winning bid, Klitschko got $17,499,997, while Povetkin received $5,833,333.^[116] The Klitschko camp were said to be surprised by the bid.^[117]

The fight took place in October 2013, Klitschko's third undefeated consecutive opponent. The bout was marred with over 160 clinches, most initiated by Klitschko, followed by several repeated roughhouse tactics throughout the match. This included Klitschko's leaning on his opponent and pushing his head down and throwing Povetkin away to prevent Povetkin from clinching, which resulted in the referee scoring some of Povetkin's fallings as knockdowns, as well as Povetkin's punching after referee's break command and leaning his head too low.^[118] Klitschko won by unanimous decision scoring a knockdown in round 2 from a quick left hook, and 3 knockdowns in round 7 including one prompted from a straight right hand. All 3 judges scored it 119–104 on the scorecards.^{[119][120][121]} Klitschko landed 139 of 417 punches (33%) and Povetkin connected on 59 of 283 (21%).^[122] After the fight, Klitschko told in the interview that he had little desire to go for the knockout as the Russian crowd would be disappointed, which lead to speculations about the alleged agreement between the champion and organisers to let the bout go the distance,^{[123][124][125]} which Klitschko later denied. With 9.2 rating, the fight became the most popular sporting event on Russian television in 2013, as well as the most watched TV programme of the year in the capital of Russia with 13.9 rating, surpassing the Moscow Victory Day Parade.^[126][127] The fight also became the most popular TV programme of Ukrainian television in 2013 with 19.5 rating.^[128]

In November 2013, Alex Leapai (30-4-3, 24 KOs) caused a huge upset in defeating then-unbeaten Denis Boytsov to become the WBO mandatory challenger.^[129] On 5 January 2014 K2 announced that a deal was close to being reached for the Klitschko vs. Leapai fight to take place in Germany on 26 April.^[130][131] Klitschko signed the contract on 3 February.^[132] It was revealed that former world title challenger David Tua declined a 'lucrative offer' to spar with Klischko ahead of the fight. Tua told Australian newspaper The Courier-Mail he "didn't want to help anyone beat a "Samoan brother".^[133] On fight night, Klitschko knocked Leapai down three times, and referee Eddie Cotton stopped the fight with fifty-five seconds remaining in the fifth round.^{[134][135][136]} Despite all the pre-fight trash talk done by Leapai, Klitschko told him, "You have truly a lionheart. You never stopped. You were challenging, you were bold. You had great desire to become a champion. Not many of my opponents have that type of attitude, that type of heart." Klitschko landed 147 of 396 punches thrown (37%), while Leapai landed a dire 10 of his 69 (14%). The 10 punches landed were made up of 6 jabs and 4 power punches.^[137][138]

The IBF finally ordered Klitschko vs. Kubrat Pulev on 8 May 2014 and given 30 days negotiation period.^[139] Klitschko's manager Bernd Boente stated that a potential fight with WBC champion Bermane Stiverne was their main priority, a fight which would see all of the heavyweight belts at stake. Kalle Sauerland stated that he would request to get Klitschko (62-3, 52 KOs) stripped of the IBF title if he didn't fight Pulev. At the same time Deontay Wilder was named Stiverne's mandatory and the WBC stated he must fight Wilder next.^[140] With IBF purse bid split being 75-25 in favour of the champion, Klitschko requested the split be 80-20 in his favour. The IBF accepted the request.^[141] A purse bid took place on 17 June, which was won by K2 Promotions. The winning bid was $7.25 million. Sauerland Event put in a bid for $5.29 million. As per the bid, K2 had the location set as O2 World Arena in Hamburg, with a possible date being 6 September 2014.^[142] In August, Klitschko suffered a bicep injury, thus postponing the fight by at least two months. A new date of 15 November was set.^[143] HBO announced that they would air the fight live in the afternoon, making it the 19th Klitschko fight they would show.^[144] Two days before the fight, it was revealed only the IBF title would be at stake for Pulev as he and tjis team, however if Klitschko loses, the remaining titles would be vacated.^[145][146]

Despite making a spirited effort, Pulev suffered three knockdowns en route to being knocked out in round five by a devastating left hook. The time of stoppage was recorded as 2:11 of round 5.In the post-fight, Pulev said, "Wladimir is a really good opponent, but he was lucky. I want a rematch". Klitschko praised Pulev, calling him a tough competitor.^[147][148] CompuBox stats showed that Klitschko landed 38 of 89 punches thrown (43%), this included 47% of his power punches. Pulev managed to land only 25 of his 110 thrown (23%). This was made up of 10 jabs and 15 power shots landed.^[149] The fight drew 10.5 million viewers in Germany^[150] and 1.8 million viewers in Bulgaria (becoming the most watched sports event on the Bulgarian TV since 2007).^[151] The fight also averaged 620,000 viewers on HBO and peaked at 700,000 viewers.^[152] Overall, the event had an estimated audience of 300 million viewers worldwide.^{[153][154][155]}

On 20 January 2015 ESPN reported that the potential Klitschko vs. Jennings was confirmed and to take place on 25 April 2015 at Madison Square Garden. Negotiations initially started in November 2014. Klitschko's manager, Bernd Boente finally announced the fight and said all contracts had been signed. The Barclays Center in Brooklyn was originally chosen to stage the fight, but no reason was given for the change of venue.^[156]

It would be the fourth time Vladimir would fight at the Garden, his first time at the arena and the United States since 2008, defending his WBA (Super), IBF, WBO, IBO and The Ring heavyweight titles. He defeated Jennings by effective use of his jab and nullifying Jennings' offensive game on the inside, especially by holding Jennings, which resulted in the referee deducting a point in the 10th round for excessive holding, although Klitschko did end up winning via unanimous decision with scores of 116–111, 116–111, and 118–109. According to Compubox Stats, Klitschko landed 144 of his 545 punches thrown (26%) whilst Jennings landed 110 of 376 (29 percent).^[157] According to Nielsen Media Research, the fight averaged 1.637 million viewers, peaking at 1.742 million viewers.^[158]

Klitschko was scheduled to take on undefeated heavyweight contender Tyson Fury, the WBO mandatory challenger, on 24 October 2015 in an unprecedented 28th heavyweight world title appearance. On 25 September 2015, Klitschko postponed the fight, citing a calf injury. It was rescheduled for 28 November 2015.^[159] Prior to the fight taking place on the night, there was much controversy, first starting with the gloves, then there was a complaint about the ring canvas. Klitschko reportedly had his hands wrapped without a representative of Fury, so had to do them again.^[160] Klitschko lost the fight by unanimous decision, with scores of 115–112, 115–112, and 116–111 all in favour of Fury.^[161][162] It was the first defeat Klitschko had suffered in over ten years and marked the end of the so-called 'Klitschko Era' referring to the time period where both Klitschko brothers (particularly Wladimir) dominated the division. Klitschko and Fury showed little offence during the 12 rounds, but Fury did enough to take the decision. Klitschko landed 52 of 231 punches thrown (23%) and Fury landed 86 of 371 thrown (23%).^[163]

In the post-fight interview, an emotional Fury said, "This is a dream come true. We worked so hard for this. I've done it. It's hard to come to foreign countries and get decisions. It just means so much to me to come here and get the decision." He then took the microphone to thank Klitschko, "I'd like to say to Wladimir, you're a great champion. And thanks very much for having me. It was all fun and games during the buildup." Klitschko failed to throw his well-known right hand, mostly due to Fury's constant movement and mocking. He said, "Tyson was the faster and better man tonight. I felt quite comfortable in the first six rounds, but I was astonished that Tyson was so fast in the second half as well. I couldn't throw my right hand because the advantage was the longer distance he had." Klitschko had a rematch clause in place.^[164][165]

Klitschko was entitled to a rematch with Fury as part of the contract for their first fight. The rematch was eventually announced on 8 April 2016 and set to take place in Fury's home town at Manchester Arena in Manchester, England on 9 July 2016.^[166] However, Tyson Fury announced via a YouTube video that the fight would be postponed due to an ankle sprain he had received during training. He apologised to his fans and confirmed the fight would be rescheduled for a later date. On Thursday 7 July, Fury announced via his Twitter account that the rescheduled fight would take place on 29 October at Manchester Arena. On 23 September, Fury again postponed the fight after being declared "medically unfit",^[167] before eventually vacating the WBA "Super", WBO and IBO titles, citing problems with depression after testing positive for cocaine.^[168] The rematch with Klitschko was cancelled as a result.

Days after the Fury rematch was called off, Klitschko was approached by Eddie Hearn, promoter of IBF champion Anthony Joshua, to fight on the 28 November date they had set for a second defence. Terms seemed to have been agreed for a $30m fight showdown although an initial contract was yet to be signed.^[169] After Fury gave up his world titles, it was said that Klitschko wanted the WBA title up for grabs in the potential match up against Joshua and waiting for approval, which the WBA kept postponing.^[170] A reason as to why the WBA was delaying sanctioning the fight was due them having a legal settlement with Lucas Browne so he could fight for the vacant title next. Klitschko then turned his attention to fighting Browne instead on 10 December, a date his team had an arena set for in Germany.^[171] On 24 October, Klitschko suffered a minor calf injury which would rule him out until 2017. Talks between the Klitschko camp and Hearn remained active with a fight set for the first part of 2017.^[172][173] On 2 November, the WBA finally agreed to sanction a fight for their super title as long as Joshua defeats Eric Molina in December 2016.^[174]

On 10 December, immediately after Joshua had defeated Molina in Manchester Arena, Klitschko was invited into the ring by Hearn. It was announced that Klitschko and Joshua would face each other for the IBF and WBA Super titles at Wembley Stadium, London, on 29 April 2017.^[175] WBA president Gilberto Jesus Mendoza confirmed that the winner will have to face mandatory challenger Luis Ortiz next, with deadlines due to be set after the unification fight.^{[176][177][177]} A day later the IBF announced the winner must fight their mandatory challenger Kubrat Pulev. Because of this clashing with the WBA enforcing their mandatory, it was believed that either Joshua or Klitschko would have to vacate a title.^[178] In January 2017, Eddie Hearn announced that over 80,000 tickets had been sold, a new box office record, overtaking Carl Froch vs. George Groves II. He put a request in for 5,000 more tickets to be made available.^[179][180] At the weigh in, Klitschko weighed in at 240 and a quarter pounds, the lightest he has weighed since 2009. Joshua came in heavier at 250 pounds.^[181]

In front of a post-war record crowd of 90,000 in attendance, Joshua won by TKO in a high-drama war that saw both men giving their all. They fought a close and cautious first four rounds. In the fifth, Joshua came out roaring and barraged Klitschko to the canvas. An angry Klitschko rose up and dominated Joshua for the remainder of the round, before landing a clean right hand and scoring his own knockdown in round 6. The next few rounds were again cautious, both men wary of each other, until a reinvigorated Joshua attacked Klitschko in round 11 with an upper-cut blow to the right side of Klitschko's face which would be the beginning of the end for the Ukrainian. Joshua then put together a few small but powerful combinations which sent his opponent to the canvas. Klitschko again rose but Joshua knocked him down for a second time in the round by unleashing a devastating combination of 7 punches flooring Klitschko with his deadly left hook. Moments later Joshua tried to end the fight by swinging a few right hooks and managed to back Klitschko in to the ropes where he again sent a barrage of punches with no reply. The referee then concluded that Klitschko had taken enough punishment and stopped the fight.^[182][183]

At the time of stoppage, Joshua was ahead on two judges' scorecards 96–93 and 95–93, and the third judge had Klitschko ahead 95–93. CompuBox stats showed that Joshua landed 107 of his 355 punches thrown (30%), and Klitschko landed 94 of 256 (37%).^[184] In the post fight interviews, Klitschko spoke about the rematch clause, but gave no indication as to whether he would activate it, "Of course we have a rematch in the contract. I need to analyze and see what the heck happened. I wish I could have raised my hands, but congrats to him. He got up, he fought back, and he won the titles."^[185] In the press conference after the fight, Joshua said he would have no issues with having another fight with Klitschko, "I don’t mind fighting him again, if he wants the rematch. Big respect to Wladimir for challenging the young lions of the division. It’s up to him, I don’t mind. As long as Rob thinks it’s good I’m good to go." Eddie Hearn said Joshua's next fight would likely take place at the end of the year, possibly at the Principality Stadium in Cardiff.^[186]

The fight averaged 659,000 viewers on Showtime in the United States. It was shown live and the fight began around 5 p.m. ET and 2 p.m. PT. Nielsen Media Research revealed the fight peaked at 687,000 viewers which was during rounds five and six.^[187] The delayed tape-replay on HBO was watched by an average 738,000 viewers and peaked at 890,000.^[188][189] In a press release, German TV channel RTL announced the fight was watched by an average 10.43 million viewers. The whole card averaged 9.59 million viewers. This was higher than the 8.91 million that tuned in to watch Klitschko vs. Fury in 2015. The fight did lower numbers than Klitschko's win over Mariusz Wach in 2012, which was watched by 11 million and Klitschko vs. Haye, which was seen by over 16 million.^[190]

On 7 June 2017, the IBF granted Joshua an exception for him to rematch Klitschko instead of fighting mandatory challenger Kubrat Pulev. At this point, it was not said that the rematch would take place. Klitschko said he needed time to review his situation before agreeing to a rematch. It was only weeks after the fight, when Eddie Hearn filed the paperwork to the IBF to request the exception to the mandatory defense. IBF explained that the rematch must take place no later than 2 December 2017 and the winner must fight Pulev next with no exceptions.^[191]

On 11 July 2017, Eddie Hearn traveled to the United States to apply for a Nevada boxing license for promoting and to also scout potential locations in Las Vegas speaking to MGM. He had a tour of the T-Mobile Arena. Although Nigeria, Dubai and China were discussed, Hearn warmed up to the idea of the fight taking place in Las Vegas.^[192] Hearn told Sky Sports, "We met with Richard Sturm and the team at MGM in Las Vegas yesterday and had a full tour of the T-Mobile Arena which is very impressive. There is a huge appetite from both sides to hold the rematch there and we will be talking further over the next week or so to see if that can become a reality."^[193] Showtime's Stephen Espinoza said a deal could be reached quickly, as he was also eager to get Joshua, who has a contract with Showtime, to fight in USA, "It's no secret we've been salivating about getting him over here and certainly that would be a phenomenal fight. It would be the biggest heavyweight Vegas fight in probably a couple of decades, so we would love to host it."^[194] On 25 July, Hearn pencilled in 11 November 2017 for the rematch to take place at the T-Mobile Arena.^[195] It was reported the fight could be pay-per-view in USA.^[196]

On 3 August 2017, Wladimir Klitschko announced on his official website and social media channels that he was retiring from boxing.^[197][198] Klitschko ended his professional career with 64 wins in 69 fights, 53 by knockout, establishing three major records of the modern heavyweight era: the most wins in heavywight title bouts (25), most wins in unified championship bouts (15) and most consecutive defenses of the unified title (14). He competed in 29 world title fights.^[199][200]

Throughout his career, Vladimir defeated 23 boxers for the world title, thus holding the record for the most opponents beaten for the world championship in boxing history among legitimate^[201] champions. Klitschko also holds the record for the longest combined world championship reign in heavyweight history at 4,383 days; the most wins in world title bouts in the international expansion heavyweight history at 25; the most wins in unified title bouts and the longest unified championship reign in professional boxing history at 15 title bouts and 14 consecutive defenses respectively; and has the second most total successful title defenses of any heavyweight boxer with 23 (including his first reign as WBO champion), behind Joe Louis (25) and ahead of Larry Holmes (20) and Muhammad Ali (19). Klitschko also holds the record for the most wins and defenses of the unified/undisputed world championship across professional boxing and MMA.^[202] Klitschko fought in 29 heavyweight title fights, more than any heavyweight champion in the sport's history. He also holds the record of having defeated the most boxers with an undefeated record, at 12, and also defeated 12 current or former world champions throughout his career.

Klitschko is also a passionate golfer and was seen playing in the Alfred Dunhill Links Championship in Scotland. The tournament was played over three courses in 2008 including St Andrews, Carnoustie, and Kingsbarns in Fife and Angus. Klitschko was named curator of the Ukrainian pavilion at the 2009 Venice Biennale.^[203]

As of October 2015, Klitschko was an adjunct professor at Switzerland's University of St. Gallen, where he taught master's students.^[26]

From 2009, Klitschko was in a relationship with American actress Hayden Panettiere.^[204] Panettiere has appeared ringside at some of Klitschko's fights, including at Klitschko's 10th-round KO victory over Samuel Peter.^[205] The couple had a brief split in 2011, but were together again in 2013.^[204][206] In October 2013, Panettiere confirmed that she and Klitschko were engaged.^[207] They have one child together, a daughter, born in December 2014.^[208] In August 2018, according to Panettiere's mother, Lesley Vogel, the couple had split for a second time.^[209] They were said to be on 'good terms' for the sake of their daughter.^[210]

On 6 December 2013, Klitschko and his fiancée Hayden Panettiere visited the Euromaidan-protests in Kiev.^[211] His brother Vitali was one of the leading figures of these protests.^[212][213] He and his fiancée addressed the crowds.^[214]

Wladimir and his brother Vitali have never fought each other in a professional fight as their mother made them promise to never fight each other.^[215]

In 2008, after Wladimir's photo session^[216] held for Vanity Fair magazine with Karolína Kurková, she claimed to have had a relationship with the boxer.^[217]

Klitschko speaks four languages: English, German, Russian and Ukrainian.^[218] He was friends with the late German heavyweight legend Max Schmeling.^[219]

On 29 March 2012, during a charitable auction in Kiev, Ukraine, Klitschko auctioned off his 1996 Olympic gold medal to a buyer who bid $1 million. Klitschko said he would use the money to help the dreams of hundreds of thousands of Ukrainian children. After the sale, the buyer immediately returned the medal out of respect for Klitschko and because he wanted it to remain with the Klitschko family.^[220][221]

Lamon Brewster defeatedWladimir Klitschko by TKO at 3:00 in round five.The bout occurred on April 10, 2004 at the Mandalay Bay in Las Vegas.The bout was for the vacant World Boxing Organization heavyweight title.

Brewster came off the canvas to land a pair of smashing left hooks to turn the fight around in the fifth round, then won in bizarre fashion after the bell sounded to end the round when referee Robert Byrd waved the fight to an end.

Wladimir Klitschko dominated the fight until he got caught midway through the fifth round with the left hooks,was knocked out for the second time in his last four fights.Brewster

fought for the first time in thirteen months and was a 7-1 underdog on the day of the fight.

Byrd stopped the fight after Klitschko had gone down following an exchange with Brewster that lasted after the bell.

Klitschko stumbled into the center of the ring and went down, but it wasn't ruled a knockdown because the bell had already sounded.

Klitschko, though, had trouble getting up, getting to his knees and then haltingly to his feet.

Byrd stopped the fight as Klitschko stumbled to his corner, giving Brewster the win by TKO at 3:00 of the fifth round.

"He couldn't take care of himself," Byrd said.

"I tried to get a response out of him but there was none.

I've never stopped a fight like that before."

Klitschko was winning the fight easily with his punishing left jab and knocked Brewster to the canvas in the fourth round with a vicious right hand.

He appeared close to being able to stop Brewster, but Brewster managed to get through the round, with both fighters falling on the canvas after tangling in Brewster's corner at the end of the round.

Midway through the fifth round, Brewster landed the left hooks that changed the fight.

Klitschko was hurt and went into the ropes, where Byrd ruled a knockdown.

Brewster went back after him and had him hurt when the bell sounded, and then Klitschko went down again.

"I know he's a tough guy.

I know he can punch," Brewster said.

"But what I wanted to do was show Americans don't lay down."

Brewster said he wouldn't be denied, and thought Klitschko's chin was suspect after being knocked out by Sanders last year in Germany.

Judd Burstein sent the U.S.

Attorney's office in Las Vegas a letter asking for the probe, citing what he said were mysterious circumstances surrounding the fight.

Burstein claimed in the letter that Klitschko's blood and urine samples taken after the fight were missing, and said it was suspicious that the odds favoring Klitschko dropped dramatically before the fight.

Klitschko was winning the April 10 fight handily before Brewster knocked him out in the fifth round.

He later said he felt drugged after the opening round.

Nevada Athletic Commission executive director Marc Ratner said nothing abnormal happened before, during or after the fight.

"We were so concerned that night that we sent him to the trauma unit instead of the emergency room with a neurosurgeon in the ambulance," Ratner said.

"He took all the appropriate tests, both urine and blood.

There was nothing in those tests irregular or remarkable."