John William Hammer (born 27 September 1935) is the founder of several sporting competitions for older players.John Hammer was born in Sunbury, Victoria, Australia.In 1963 John joined the Victorian Football League (VFL) Reserve Grade as a field umpire. In 1967 was promoted to the senior list and umpired 16 Victorian Country Football League matches.He founded Superules, an Australian rules football competition for those over 35 years of age at a meeting at the Zero Inn, Nhill, Victoria in 1980.