 Södergren won the 50 km event at both the 2006 and the 2008 Holmenkollen ski festival, making him the only skier to have won an international 50 km elite race with individual start in free technique since 2004.Södergren has a twin brother, Per, who was forced to abandon his cross-country skiing career following a back injury.All results are sourced from the International Ski Federation (FIS).