He represented the club SK Odd. In 1895 he finished second in the B class at the Holmenkollen ski festival, and in 1897 he finished second in the A class and won the Holmenkollen medal. In 1895 he also finished seventh in Saltsjöbaden. He later won the Holmenkollen veteran's class in 1906. He held the world record in ski jumping, tied with Morten Hansen, with 32.5 metres achieved in Solbergbakken in 1899.
- Vaage, Jakob (1956). "Osloklubber som ikke lenger er aktive". In Ranheim, Erling. Norske skiløpere (in Norwegian). Østlandet Sør. Oslo: Skiforlaget. pp. 364–382.
- "Dr. Asbjørn Nilssen død". Aftenposten (in Norwegian). 21 October 1958. p. 5.
- "Cemeteries in Norway". DIS-Norge. Retrieved 23 December 2012.
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