First Larsen’s club in Poland was Speedway Wanda Kraków, where he took part in nine matches. Another place for him was Ostrovia Ostrów. During the first season in Ostrów there was tough competition and it was difficult for Larsen to be in the first squad. Year later he was one of the leaders of Orzeł Łódź, with Peter Kildemand. This time PGE Marma Rzeszów, which wants to be promoted to Ekstraliga, decided to sign a contract with talented Dane. After the first part of the season Dane was the most effective rider in the league. He had a debut in Speedway European Championships in 2014. He got the place in the final as a result of his fifth place in the challenge.