Peddle took up weightlifting whilst a teenager. At the age of 17 he was selected to compete for the Great Britain team at the 1988 Summer Paralympics at Seoul. Four years later he won his first Paralympic medal, a bronze in the 52kg weightlifting at Barcelona. In 1994 Peddle won silver at the IPC Powerlifting World Championships in Upsalla in the 48kg category. He then added a second Paralympic bronze medal at the 1996 Game in Atlanta. He continued his run of medals with another second place at the 1998 IPC Powerlifting World Championships.