Thor was an amateur fighter in 2005 when he joined Tarzana Boxing as a member. In 2007 Thor went pro and also became a trainer so that he could double down on his experience in the ring. Skancke has studied Brazilian jiu-jitsu, Muay Thai, and MMA for over 10 years, but he also counts his verbal acuity as a prized weapon. Thor got his name from his mother who is Norwegian and credits some of his fighting ability to having to defend an uncommon name. In a Post-Bellator fight interview, Thor said:   
And the worst thing is, anything you do, people have little jokes now ever since The Avengers became famous: ‘Where’s Captain America ? How’s the Hulk doing?’ Shut the (expletive) up, dude. Let me go about my life.
In 2016, Thor won the "King of the Cage " title belt in the Junior Welterweight weight class. In January 2019 he won his first fight in the Bellator arena against Jesse Merritt with a Monson choke. As of April 2019, Thor's record is 11-8-1.