New York · Marathon · 29.3 Miles · 10K
Suffolk County Marathon
Suffolk County Marathon is a marathon, 29.3 Miles, 10K, 9.3 Miles and 5K event held in Bay Shore, New York. It was last held on October 17, 2026 and is usually run in October; the next date hasn't been announced yet. About 308 runners take part across all distances.
- Usually held
- October
- Location
- Bay Shore, NY
- Field size
- ~308 runners
Race details
- Last held
- October 17, 2026
- Usually held in
- October
- Location
- Bay Shore, New York
- Distances
- Marathon, 29.3 Miles, 10K, 9.3 Miles, 5K, 1K
- Field size
- About 308 runners
- Course
- 251 ft gain
- Registration
- runsignup.com
- Official website
- suffolkmarathon.com
Registration, course & weather
- Start time
- 7:30 AM EDT
- Course profile — Marathon
- Out-and-back course; Road surface; 251 ft gain, 251 ft loss (estimated from third-party elevation data); Boston qualifier
- Course profile — Marathon
- Point-to-point course; Road surface; 251 ft gain, 251 ft loss (estimated from third-party elevation data); USATF certified; Boston qualifier
- Typical race-day weather
- about 59°F at the start, 83% humidity, 8 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 25, 2026)
About the Suffolk County Marathon
The 12th Annual Suffolk County Marathon, Half Marathon, 10K, Sunday, October 18th, and the 5K will be held on Saturday, October 17th, 2026. Sunday's races will start in the Village of Babylon and Finisher in Gardiner Park, located at Montauk Hwy W, Bay Shore, NY 11706. 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 rai…
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Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Suffolk County Marathon: common questions
- When is the Suffolk County Marathon?
- The next date hasn't been announced in the listing yet. The race is usually held in October. Check the organiser's website for the official date.
- Where is the Suffolk County Marathon held?
- In Bay Shore, New York.
- What distances does the Suffolk County Marathon offer?
- Marathon, 29.3 Miles, 10K, 9.3 Miles, 5K and 1K.
- How many people run the Suffolk County Marathon?
- About 308 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Suffolk County Marathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- What time does the Suffolk County Marathon start?
- 7:30 AM EDT.
- What is race-day weather usually like at the Suffolk County Marathon?
- about 59°F at the start, 83% humidity, 8 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 25, 2026).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.