Career
His best World Cup finish was fifth in a 15 km event at Lahti in 1995. Hartonen also finished 13th in the 30 km event at the 1994 Winter Olympics in Lillehammer. His best finish at the FIS Nordic World Ski Championships was 14th in the 50 km event at Falun in 1993.
Jukka is also active in triathlon and running races.
