Clarence DeMar Marathon
Clarence DeMar Marathon follows a net-downhill route into Keene, blending New Hampshire lake and woodland roads with a historic Boston-qualifying race.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 21, 2026.
Quick facts
- Historic New Hampshire Boston qualifier.
- Net-downhill point-to-point route into Keene.
- Rural roads, forest, and lake scenery.
About the Clarence DeMar Marathon
Named for seven-time Boston Marathon champion Clarence DeMar, this New Hampshire race has a deep regional history. Its point-to-point format finishes in central Keene.
Course
The certified course trends downhill from Gilsum toward Keene while retaining enough rollers to punish overly aggressive pacing. Rural roads, forest, and lake views dominate before the city finish.
Race-day weather
Late September can deliver ideal cool New England conditions, but warm sun or rain remains possible. Shaded rural miles may feel notably cooler than the finish.
Past Clarence DeMar Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, September 27, 2026 | Upcoming | — |
| 2025 | Sunday, September 28, 2025 | Completed | Open results |
| 2024 | — | Completed | Open results |
Clarence DeMar Marathon FAQ
When is the Clarence DeMar Marathon?
The 2026 Clarence DeMar Marathon is on Sunday, September 27, 2026.
How do I register for the Clarence DeMar Marathon?
Registration for the 2026 Clarence DeMar Marathon has not been posted yet.
Can I use the Clarence DeMar Marathon for Boston qualifying?
Marathon Scout marks the Clarence DeMar Marathon as a Boston qualifier. Check the current Boston qualifying times and confirm current certification with the race before registering.
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