Career
After retirement, Nygren set up a successful speedway training school. Individual World Championship
1953 – London, Wembley Stadium – 4th - 12+2pts
1954 – London, Wembley Stadium – 3rd - 13+2pts
1955 – London, Wembley Stadium – 8th - 9pts
1958 – London, Wembley Stadium – 7th - 9pts
1959 – London, Wembley Stadium – 4th - 11+2pts
World Team Cup
1968 - London, Wembley Stadium (with Bengt Jansson / Anders Michanek / Ove Fundin / Torbjörn Harrysson) - 2nd - 30pts (3)
In 1962, Nygren took part in a minor race, the Kanonloppet, at the Karlskoga Circuit at Karlskoga in his home country of Sweden. He drove a Lotus 18 loaned to him by American driver Jay Chamberlain.
Nygren qualified tenth of the ten starters, and had to retire after just six laps with a gearbox failure.
Non-Championship results
(key).