Career
Preston began his career at the Poole Pirates in 1979 and spent two years there before moving to the Eastbourne Eagles in 1982. He retired from the sport at the end of the 1982 season due to a knee injury. Preston was slated to ride in the 1979 Speedway World Pairs Championship Final with Bruce Penhall at the Speedway Center in Vojens, Denmark after first Kelly Moran had to pull out due to injuries suffered in a practice crash and the Moran"s replacement Steve Gresham failed to arrive.
However, Preston was left stranded at the Heathrow Airport in London, England and could not make it to Denmark in time, which forced Penhall to ride the Pairs Final alone.