Career
Ashby began his career with the Swindon Robins in 1961 but was moved on to the Exeter Falcons in 1968 by the speedway rider control committee. Three years later he returned to Swindon remained there for the rest of his career, apart from a short spell at Reading Racers in 1980 where he helped secure the title. Ashby was a regular England international.
Ashby held the club record for most appearances (641) and points total (5,4765½) until 2008 when Leigh Adams overtook the points record.
Last rode end of season 1980 at Reading. Since retiring, has been running a motorcycle workshop: repairs, and tuning et cetera
Individual World Championship
1968 - Göteborg, Ullevi - 11th - 5pts
1975 - London, Wembley Stadium - Reserve - did not ride
World Pairs Championship
1969* - Stockholm, Gubbängens Intellectual Property (with Nigel Boocock) - 3rd - 21pts (10)
* Unofficial World Championships. World Team Cup
1969* - Rybnik, Rybnik Municipal Stadium (with Nigel Boocock / Ivan Mauger / Barry Briggs) - 2nd - 27pts (5)
* 1968 and 1969 for Great Britain.
All others for England.