Heikkinen won his first World Championship at the
FIS Nordic World Ski Championships 2011 in Holmenkollen 2011. Winning 15 km, he is the first Finnish men's World Champion for over a decade. He also won two bronze medals at the
FIS Nordic World Ski Championships 2009 in
Liberec, earning them in the 15 km and 4 × 10 km relay events. In December 2009, Heikkinen took his first
World Cup victory on the 15 km freestyle event in
Davos. Heikkinen finished fifth in the 4 × 10 km relay at the
2010 Winter Olympics in
Vancouver, Canada. He announced his retirement from cross-country skiing in March 2019. Heikkinen lives in
Jyväskylä and studies at the
University of Jyväskylä School of Business. ==Cross-country skiing results==