[3] Middleditch served in the RAF in World War II as a rear gunner, and became interested in speedway while stationed in Egypt.
[4] Middleditch signed for Third Division team Hastings in 1948 after progressing through Eastbourne's speedway training school.
He won the National League Division Three Rider's Championship, held at Penarth Road Stadium in Cardiff on 23 October 1951.
In 1954, he won the National League Division Two Rider's Championship, held at Hyde Road on 16 October.
Middleditch's son, Neil, also had a successful career as a speedway rider and has been team manager of the Poole Pirates since 1998.