Keene, NH
Sunday, September 27, 2026




5 Stars from 4 ReviewsDon't waste months of training only to run the wrong pace.
Clarence DeMar Marathon Pace Bands are adjusted for the specific terrain of the course, your goal time and pacing strategies.
Only $9.99
Race Dates
2026: Sunday, September 27, 2026Course Information
Profile: DownhillRace Day Weather
Mean Temp.: 53°F (11°C)PR Score & Course Score
PR Score: 99.05Race Size
2025: 308 FinishersBQ Percentages
2025: 14.3%Miscellaneous Information
Pace Groups?: No
Race Day Temperatures |
High: 70°F (21°C) |
Race Start Conditions |
51°F (11°C) |
PR Score |
98.32 |
Course Score |
99.5 |
The Clarence DeMar Marathon was the 203rd largest marathon in the U.S. in 2025 based on the number of finishers. In 2024, it ranked as the 162nd largest marathon in the U.S..
In 2025, 14.3% of Clarence DeMar Marathon finishers achieved Boston Marathon qualifying times. In 2024, 11.3% of finishers qualified for Boston.
Based on its percentage of Boston Qualifiers (BQs), the Clarence DeMar Marathon ranked 75th among marathons in the U.S. in 2025 and 145th in 2024. In New Hampshire, it ranked 2nd in 2025 and 2nd in 2024. These rankings provide a useful benchmark for runners comparing Boston Marathon qualifying potential across different races.
The Clarence DeMar Marathon has a Course Score of 99.37, ranking it as the 138th fastest marathon course in the U.S. and the 1st fastest marathon course in New Hampshire.
Typical race-time temperature and humidity levels are slightly above the ideal range for optimal marathon performance. Combined with the course profile, this gives the Clarence DeMar Marathon a PR Score of 99.05. The PR Score ranks the Clarence DeMar Marathon as the 154th best marathon in the U.S. for running a Personal Record (PR) and the 1st best marathon for a PR in New Hampshire.
Together, these rankings provide a quick snapshot of how the Clarence DeMar Marathon compares with other marathons in the U.S. and New Hampshire for speed, PR potential, Boston Marathon qualifying success, and overall participation.
Max Elevation: 928 feet (282m)
Min Elevation: 495 feet (150m)
Elevation Gain: 706 feet (215m)
Elevation Loss: 1135 feet (346m)
View available accomodations around the Clarence DeMar Marathon Finish Line and Course. Book your Reservation now before the best places are sold out.
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Compare the details of the Clarence DeMar Marathon side-by-side with other marathons with our Comparison Tool.
If you ran the Clarence DeMar Marathon in 3:03:00, what would your time in other marathons be?
See how your finish time would compare on other marathon courses with our Time Conversion Tool.




Hands down my favorite marathon (and I've run a lot!)
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