In 2006 Martin started his triathlon career after swimming on a national level for several years. In 2008 Martin qualified for ITU LD World Championships and won a bronze medal. In 2009 he defended the bronze medal, and won the Danish LD Championships.
Last year Martin won the silver medal at the ETU LD Championships and came in 2nd at his first race on the Ironman distance at Ironman Louisville.
On October 9th he debuted at Ironman Hawaii and finished in an 18th place with a sub 3hr marathon.