A national team skier, he also represented Åsarna IK during the 1980s and early 1990s. Ottosson in best known is for winning the Vasaloppet four times in (1989, 1991, 1992, 1994). After his active career with the Åsarnas squad, Ottosson now works as an official on the Bergs ski center.
He won two gold medals in the 4 x 10 km relay at the Winter Olympics (1984 and 1988), providing some of the most iconic and impressive legs of Swedish Olympic history. Additionally, he finished sixth in the 50 km event at the 1988 Winter Olympics, sixth in the 15 km event at the 1991 Nordic skiing World Championships, won 8 individual Swedish championships, and won 47 Swedish championship gold medals in the relays. Currently, Ottosson runs his own Vasaloppet training program, where the former champion helps others prepare for the race. Ottosson also owns a state-of-the-art ski grinding machine and a ski waxing business which the former champion uses to perfect patrons" skis for Vasaloppet race conditions.
