Suffolk County Marathon
Long Island's county marathon runs from Babylon Village over the Robert Moses Causeway to a Bay Shore park finish, raising money for local veterans.
Quick facts
- Point-to-point course from Babylon Village to Gardiner Park in Bay Shore.
- Crosses the Robert Moses Causeway with open views of the Great South Bay.
- Cumulative race proceeds for local veterans services have passed one million dollars.
- Marathon runs Sunday of a two-day race weekend.
Is registration open for the 2026 Suffolk County Marathon?
Registration for the 2026 Suffolk County Marathon is open.
About the Suffolk County Marathon
Suffolk County's flagship fall race carries a clear mission: entries have raised more than one million dollars for local veterans services since the event began. The marathon anchors the Sunday of a two-day race weekend that also includes a half marathon, 10K, and Saturday 5K.
Course
The point-to-point route starts in the Village of Babylon and finishes at Gardiner Park in Bay Shore, with the signature miles crossing the Robert Moses Causeway above the Great South Bay. The causeway climb and open water views come with real exposure, so wind can shape the middle of the race.
Race-day weather
Mid-October on Long Island's south shore usually means 40s at the start and 50s to low 60s later. The causeway and shoreline sections sit open to the wind, which can matter more than temperature on the wrong day.
Past Suffolk County Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, October 18, 2026 | Upcoming | — |
Suffolk County Marathon FAQ
When is the Suffolk County Marathon?
The 2026 Suffolk County Marathon is on Sunday, October 18, 2026.
Is registration open for the 2026 Suffolk County Marathon?
Registration for the 2026 Suffolk County Marathon is open. View the official registration details at runsignup.com.
Is Suffolk County Marathon a Boston qualifier?
Yes. Suffolk County Marathon is a Boston Marathon qualifier. To use the result, you must run the certified full-marathon course within the qualifying window and meet the current standard for your age and gender. Meeting the standard lets you apply but does not guarantee entry, and net-downhill courses can receive a time adjustment under current B.A.A. rules. Review the Boston qualifying times and downhill-course rules, or browse upcoming Boston qualifier marathons.
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