Career
In the World Cup, he took four victories in races between 10 km and 30 km. Isometsä was among the six Finnish skiers who were caught of doping in the Finnish 2001 FIS Nordic World Ski Championships scandal for taking hydroxyethyl starch (HES), a blood plasma expander usually used to cover up the use of erythropoietin (EPO) in athletes. He was stripped of his silver medal in the 10 km + 10 km combined pursuit and served a two year suspension from the FIS, International Olympic Committee, and World Anti-Doping Agency (WADA), effectively ending his career as a world-class skier.
Since July 2009 Isometsä has worked as a sales manager for football club Football Club Honka.
In 2013, Isometsä received a 6-month suspended sentence after the Helsinki District Court found that he had committed perjury when witnessing to the court in 2011 that he was unaware of any doping use in the 1990s.