Suffolk County Marathon

The 11th Annual Suffolk County Marathon, Half Marathon, 10K, Sunday, October 19th, and the 5K will be held on Saturday, October 18th, 2025. Sunday's races will start in the Village of Babylon and Finisher in Gardiner Park, located in West Islip. Athletes running the Half & Full Marathon will run one of the most scenic courses on Long Island, as they cross the Robert Moses Causeway. Saturdays races will start and finish at Gardiner County Park. Each year, the Marathon raises money to benefit veterans and to date, the Suffolk County Marathon has raised over $1,000,000 for local veterans’ services.