BDMS Bangkok Marathon
Bangkok’s overnight marathon moves through the capital before dawn, trading daytime heat for humid night running and illuminated historic landmarks.
Quick facts
- Overnight full marathon on closed central Bangkok roads.
- Mostly flat urban course where heat and humidity remain important after midnight.
- Historic districts and illuminated city landmarks distinguish the full-distance route.
About the BDMS Bangkok Marathon
BDMS Bangkok Marathon is Thailand’s long-running capital-city marathon, staged overnight alongside shorter road races. Its timing and central route are designed around Bangkok’s tropical heat and daytime traffic.
Course
The full marathon uses central Bangkok roads during the overnight closure window, linking broad avenues with historic districts before returning to the finish area. The profile is mostly flat, but humidity and late-race turns add difficulty.
Race-day weather
January nights in Bangkok remain warm and humid. The overnight start avoids the strongest sun, but hydration and conservative pacing still matter.
Past BDMS Bangkok Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Sunday, January 10, 2027 | Upcoming | — |
| 2025 | Sunday, November 16, 2025 | Completed | Open results |
| 2024 | — | Completed | Open results |
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BDMS Bangkok Marathon FAQ
When is the BDMS Bangkok Marathon?
The 2027 BDMS Bangkok Marathon is on Sunday, January 10, 2027.
Is BDMS Bangkok Marathon a Boston qualifier?
Yes. BDMS Bangkok 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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