Career
Happonen made his debut on 23 November 2001 in Kuopio, finishing an impressive eleventh in the individual large hill competition. Happonen was one of five Finns that travelled to Vancouver for the 2010 Winter Olympics. He participated in all three competitions at Whistler Olympic Park, producing good efforts in the normal hill and large hill competitions, although he was disqualified from the latter due to a suit violation.
Standings
Wins.