Career
Club
In the 2011/2012 season, Larsen started 1st team training in Odense Boldklub. He was incorporated in the squad spring 2012 and gained 8 Superliga performances. In February 2015, Larsen moved to Kazakhstan Premier League side Football Club Astana on a season-long loan deal.
Larsen returned to Odense from Astana in July without playing a game for the Kazakh side, going on to sign for Eredivisie side Football Club Groningen in August 2015.
International career
In 2012, Larsen has been a regular in the Denmark national under-19 football team squad.