Career
Born in Bjarkøy and raised in Rissa, he first represented Rissa Illinois and later IK Tjalve in Oslo. He set three world records over 1,000 metres, the last being 2:19.0 in 1955. The same year he ran 800 metres in 1:45.9, setting a new Norwegian record.
Incidentally, the man who beat him in that race, Belgian Roger Moens, ran a world record time, with Boysen also under the old world record.
That Norwegian record stood for 37 years until 3 July 1992 when it was broken by Atle Douglas (1:4515) and Vebjørn Rodal (1:4533).