Runnymede Park was initially a block of land laid out on a plan created by Hannah M. Clarke in 1883.

[1] Like many other landmarks in the neighbourhood, the park takes its name from the estate of John Scarlett, an early land owner in the area.

The siding was operated by the Canadian Pacific Railway serving local industries, though towards its end it only moved tank cars to the Bunge edible oils plant on the northwest corner of St. Clair Avenue West and Keele Street.

It was finally put out of service when the plant closed in 2008, and the tracks through the park were removed in late October 2009.

It is the home of George Bell Arena, which features an ice rink used extensively by local hockey leagues.