Sandford began his career riding in local scramble and grass track events. At the end of the 1957 season, Mondial and the other Italian motorcycle factories withdrew from Grand Prix racing due to escalating costs and Sandford decided to retire. Points system from 1950 to 1968.
(key) (Races in italics indicate fastest lap).
He was a two-time world champion and a two-time Isle of Manitoba TT winner. In 1950 he was offered a place on the AJS factory racing team alongside the reigning world champion, Les Graham. He followed Graham to the Move Files Agusta team and won the 1952 FIM 125cc title, bringing Agusta their first world championship. In the 1957 season, he won a second world championship, this time in the 250 class riding for the Mondial team
