Altogether, he made the top 10 twelve times in the World Cup, repeating his second place in a sprint once, and achieving two third places in 15 kilometre races. Bjonviken also competed in the World Ski Championships on one occasion, recording a 44th place at the FIS Nordic World Ski Championships 2003. His final World Cup outing came at the Holmenkollen ski festival in March 2005, when he contested the 50 km without finishing. Later that year he was diagnosed with cancer, but beat the disease in 2007. He attended the Norwegian Police University College.