 During the seasons of 1975-76 to 1979-80 he played 174 games in Elitserien, totalling 121 points (63 goals, 58 assists) and 63 penalty minutes.Mårts played his last five seasons of his active playing career for Västerås IK in HockeyAllsvenskan.Mårts has functioned as ice hockey coach since 1986 and is currently head coach of HV71, which he has won one Swedish Championships with.