Career
Lajunen also found success at the FIS Nordic World Ski Championships, winning eight medals. This included one gold (4 × 5 km team: 1999), four silvers (15 km individual: 1999, 2001. 4 × 5 km team: 1997, 75 km sprint: 2001).
And three bronzes (15 km individual: 2003, 4 × 5 km team: 2001, 2003)
Lajunen ended his career after the season 2003/2004 at a quite early age, 24 years old, and concentrated on his studies at the University of Jyväskylä.
In the spring of 2007 he graduated with a Master"s degree in Economics and Business Administration.