Dreyer was the Olympic Gold Medallist at lightweight in London 1948, defeating Joseph Vissers of Belgium in the final.

Below are Gerald Dreyer's bouts from the 1948 Olympic Games: Dreyer turned pro in 1948 and fought primarily in New York City late in his career, retiring in 1955 after having won 41, lost 8, and drawn 2 with 23 Knockouts.

Dreyer won the Commonwealth (British Empire) lightweight title beating Cliff Curvis over 15 rounds at Rand Stadium, Johannesburg on 8 December 1952.

Boxing record for Gerald Dreyer from BoxRec (registration required)

This biographical article related to a South African boxer is a stub.