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Race Dates

2018: TBD
2017: Sunday, September 24, 2017

Course Information

Profile: Downhill
Type: Point to Point
Surface: Road/Pavement
Certified?: Yes

Race Day Weather

Mean Temp.: 53°F (11°C)
Average High: 68°F (20°C)
Average Low: 42° F (5°C)

Historical Weather

PR Score & Course Score

PR Score: 99.11
Course Score: 99.43

Race Size

2017: No Results
2016: 280 Finishers
2015: 262 Finishers

BQ Percentages

2017: N/A
2016: 20.7%
2015: 18.7%

Miscellaneous Information

Pace Groups?: No

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Course Description

The Clarence DeMar Marathon is a fast, point to point course which travels through towns of Gilsum, Surry, and Keene, New Hampshire.

The course is a net downhill, dropping approximately 500 feet from start to finish. It is not an entirely smooth downhill since runners will encounter some rolling hills during their net descent to the finish.

Marathon Rankings

The Clarence DeMar Marathon was the 219th largest marathon in the U.S. last year and was the 236th largest in 2015.

Last year 20.7% of finishers qualified for the Boston Marathon and 18.7% of runners qualified for Boston in 2015.

This gives the Clarence DeMar Marathon the 39th highest percentage of Boston Marathon qualifiers in the U.S. last year and the 47th highest percentage in 2015.

Its Course Score of 99.43 ranks it as the 109th fastest marathon course in the U.S. and the 1st fastest course in New Hampshire.

The typical race time temperature and humidity levels are slightly above the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the Clarence DeMar Marathon a PR Score of 99.11. This PR Score ranks it as the 123rd fastest marathon in the U.S. and the 1st fastest in New Hampshire.

Learn more about PR Scores and Course Scores on the FAQ page.

Elevation Chart

Max Elevation: 904 feet (275m)
Min Elevation: 471 feet (143m)


Recent Clarence DeMar Marathon Reviews

5 Stars from 1 Reviews
View all Reviews

review of 2017 Clarence DeMar Marathon.   

5 / 5 Stars


Excellent Marathon. Beautiful and Scenic. Logistics and the entire race was well managed.

Race Tips

Logistical Tips (Hotels, Restaurants, Parking, Discounts, etc.)

Finish Time Equivalent

If you ran the Clarence DeMar Marathon in 3:51:00, what would your time in the Boston Marathon be?

See how your race times would compare on other marathon courses using the Marathon Time Converter Tool.