Career
Hammer made two appearances for Geelong in the 1945 VFL season, against Carlton at Kardinia Park in round eight and Street Kilda at Junction Oval in round nine. He previously played under-18s at Newtown & Chilwell. A half back flanker, Hammer played in the Tasmanian Football League for North Hobart in 1948 and 1949.
In 1953, Hammer represented Tasmania at the Adelaide Carnival.