In 2011, he broke the 30-year-old national junior record in the 400m. At the 2012 Summer Olympics in London at the age of 19, Solomon competed in the finals of the men's 400m race, placing eighth with a time of 45.14 after running a time of 44.97 in the semifinals. He was the first Australian man in 24 years to reach the 400m Olympic final. At the 2012 IAAF World Junior Championships he won a bronze medal.
At the 2013 Maccabiah Games, Solomon won a silver medal in the 400m race. At Stanford in 2013, he established a new freshman record in the 400m. In 2014, he set a new Stanford record in the outdoor 400m with a time of 45.36, and ran a 500m in 1:01.44 (the third-fastest time in the world to that point).
Solomon was born in the Sydney suburb of Vaucluse, New South Wales, Australia, and is Jewish. His local rabbi is Levi Wolff, a Chabadnik who runs Sydney, Australia’s largest Orthodox congregation, Central Synagogue. His father, Michael, is a South African-born orthopedic surgeon, and his mother is Lucille Solomon. He has a younger sister, Bianca.
Solomon was raised in East Lindfield and attended Lindfield East Public School and Cranbrook School, Sydney. Solomon planned to follow his father into medicine after accepting an athletic scholarship in track at Stanford University. At Stanford, he studied Human Biology, and graduated in 2017. He is attending Duke University in 2017-18 to study for a Masters in Management Studies (MMS) at the Fuqua School of Business.
Solomon first began formal track training in 2009, and that year he won the Under-17 All-Schools Championship in the 400m. Solomon competed for Australia in the Maccabiah Games, the "Jewish Olympics", as captain of the junior soccer team at the 2009 Maccabiah Games. He was named the 2009 Maccabi New South Wales Junior Sportsman of the Year.
After breaking the 30-year-old national junior record in the 400m in 2011, Solomon was part of the Australian squad in the 4 × 400 metres relay at the 2011 World Championships in Athletics. He won the 2011 Australia National Championship in the 400m at 17 years of age. In September 2011, he suffered a hamstring tear. He was named the Maccabi New South Wales Sportsman of the Year in 2011.
At the 2012 Summer Olympics in London at the age of 19, he competed in the finals of the Men's 400 m race, placing eighth with a time of 45.14, after running a time of 44.97 in the semifinals. Two and a half years prior, Solomon had never run a 400m race. He was the first Australian man in 24 years to reach the 400m final at the Olympics. He also ran on Australia's 4x400 relay team that ran 3:03.17 in the first round, and did not advance to the final. He won the 2012 Australia National Championship in the 400m in a time of 45.54, despite his hamstring injury. At the 2012 IAAF World Junior Championships in Barcelona, Spain, he won a bronze medal in the 400m as he set a personal record of 45.52. He was awarded the 2012 Richard Coombes Memorial Award for Most Outstanding Male Athlete.
Solomon competed for Australia again as captain of the junior soccer team at the 2013 Maccabiah Games. At those Games he also competed in track, and won a silver medal in the 400m race, with a time of 46.24. At the 2013 Morton Games in Dublin, Ireland, he came in third with a time of 46.18. At the 2013 World Championships in Athletics in Moscow, Russia, returning from a back injury he led off for the Australia 4 x 400 relay team, running a split of 45.3, as the team finished eighth in the final with a time of 3:02.26. At Stanford in 2013, he established a new freshman record in the 400 with a 46.12 (No. 3 on the school's all-time list), and was named a second-team All-American. He was also named the top junior sprinter for 2013 at the NSW Athletics’ awards, and the Maccabi Australia Outstanding Jewish Sportsman of the Year.
In 2014, he set a new Stanford record in the outdoor 400m while winning the Australian national championship, running 45.36, and also finished second at the Pac-12 Championships in a time of 45.79. Running indoors for Stanford, Solomon ran a 45.75 split in the 400 medley relay at the 2014 NCAA Indoor Track and Field Championships (as the Cardinal won the title in 9:37.63), and also won the Mountain Pacific Sports Federation (MPSF) title in the 400 in 46.24, and ran a 500 in 1:01.44 (the third-fastest time in the world to that point). He was injured, as a back problem turned into a chronic hamstring injury and then a torn hamstring in the 400m semifinal at the 2014 Commonwealth Games that necessitated surgery after the Games, and he therefore only competed for Stanford for two years.
In April 2017, Solomon won a record-tying fifth Australian National Championship in the 400m, in a time of 46.66 in wet conditions. At the June 2017 TrackTown Summer Series 400m race he ran a time of 45.19, his fastest race since the 2012 Olympic final, thereby qualifying for the 2017 World Championships in Athletics in London.
As a graduate student at Duke University in 2017-18, he is finishing his final year of National Collegiate Athletic Association (NCAA) athletic eligibility with the Duke Blue Devils track & field team.
|2010||Oceania Youth Championships||Sydney, Australia||1st||4 × 400 m relay||3:20.10|
|World Junior Championships||Moncton, New Brunswick, Canada||11th (h)||4 × 400 m relay||3:11.19|
|2017||World Championships||London, United Kingdom||38th (h)||400 m||46.27|