New Hampshire · Marathon · Half Marathon
Clarence DeMar Marathon & Half Marathon
Clarence DeMar Marathon & Half Marathon is a marathon and half marathon event held in Keene, New Hampshire. Its next confirmed date is Sunday, September 26, 2027. About 850 runners take part across all distances.
- Race day
- September 26, 2027
- Location
- Keene, NH
- Field size
- ~850 runners
Race details
- Date
- Sunday, September 26, 2027
- Location
- Keene, New Hampshire
- Distances
- Marathon, Half Marathon
- Field size
- About 850 runners
- Course
- Net downhill, ~500 ft drop
- Registration
- clarencedemar.com
- Official website
- clarencedemar.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: not announced
- Start time
- 7:00 AM EDT
- Course profile
- Point-to-point course; Road surface; 706 ft gain, 1135 ft loss (official course data); USATF certified; Boston qualifier
About the Clarence DeMar Marathon & Half Marathon
A fast, net-downhill point-to-point marathon and half through Gilsum, Surry and Keene in early fall, famous for its high Boston-qualifying rate.
Rankings and notes
- Rankings and awards
- Boston qualifier; ~14% of finishers qualify for Boston; USATF-certified, named for 7-time Boston winner Clarence DeMar
More marathons in New Hampshire
Coming up next, by confirmed date.
-
CMC Manchester City Marathon, Half Marathon, Relay & 5KManchester, NHMarathonHalf MarathonMarathon Relay5K ~2,500 runners
-
Gate City Marathon, Half Marathon & RelayNashua, NHMarathonHalf MarathonMarathon Relay ~300 runners
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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.
Clarence DeMar Marathon & Half Marathon: common questions
- When is the Clarence DeMar Marathon & Half Marathon?
- The next confirmed date is Sunday, September 26, 2027.
- Where is the Clarence DeMar Marathon & Half Marathon held?
- In Keene, New Hampshire.
- What distances does the Clarence DeMar Marathon & Half Marathon offer?
- Marathon and Half Marathon.
- How many people run the Clarence DeMar Marathon & Half Marathon?
- About 850 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 Clarence DeMar Marathon & Half Marathon?
- Registration is handled by the organiser at clarencedemar.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Clarence DeMar Marathon & Half Marathon?
- Registration status as last checked October 5, 2026: not announced.
- What time does the Clarence DeMar Marathon & Half Marathon start?
- 7:00 AM EDT.
- What is the course like at the Clarence DeMar Marathon & Half Marathon?
- Point-to-point course; Road surface; 706 ft gain, 1135 ft loss (official course data); USATF certified; Boston qualifier.
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.