[1] He competed in the inaugural 1949 Grand Prix motorcycle racing season.

His best seasons were 1955 and 1956 when he finished in second place in the 350cc world championship, both times behind his Moto Guzzi teammate Bill Lomas.

[2] He was also a two-time winner of the prestigious pre-season Mettet Grand Prix invitational race (1957, 1960).

[3] Dale also competed in the 500cc class aboard Moto Guzzi's famous V8 Grand Prix bike.

He died on the way to hospital in a helicopter, after crashing during the 1961 Eifelrennen race at the Nürburgring in West Germany.