 Nousiainen won his first world championship medal with a bronze in the team sprint event with Sami Jauhojärvi at Liberec in 2009.He then followed it with another bronze in the 4 × 10 km relay at the same championships.First place victories include two 10 km FIS races and most recently two National Championships in Finland in 2010 (50 km, 19.8 km).