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We are creating a Marathon Time Predictor Tool utilizing scientific research and data from individual runners' races and training.

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Race Dates

2017: TBD
2016: Sunday, September 25, 2016

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

2016: No Results
2015: 262 Finishers
2014: 389 Finishers

BQ Percentages

2016: N/A
2015: 18.7%
2014: 17%

Miscellaneous Information

Pace Groups?: No

Marathon Pace Bands

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Course Description

**New Course for 2015**

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 241st largest marathon in the U.S. last year and was the 185th largest in 2014.

Last year 18.7% of finishers qualified for the Boston Marathon and 17% of runners qualified for Boston in 2014.

This gives the Clarence DeMar Marathon the 48th highest percentage of Boston Marathon qualifiers in the U.S. last year and the 49th highest percentage in 2014.

Its Course Score of 99.43 ranks it as the 104th 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 113th 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)


Ratings & Reviews: None

Finish Time Equivalent

If you ran the Clarence DeMar Marathon in 4:02:00, 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.