Educated at Kingston Grammar School, Peter Whitbread went on to become an outstanding defender, playing at either full-back or half-back, with Old Kingstonians, both before and after World War II. Old Kingstonians were one of the strongest hockey teams in the south of England in the early post-war years. In 1947, Whitbread played for Surrey and The South before getting a call-up for his first England cap. He was part of the Great Britain squad at the 1948 London Olympics, although he did not play. He continued playing until the mid-1950s.