Clarence DeMar Marathon

SEP
27
2026
Experience the historic Clarence DeMar Marathon and Half Marathon in scenic Keene, New Hampshire. This community focused event features a variety of distances and deep roots in New England racing history.
Sun 27 Sep 2026
Marathon Half Marathon

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48th Running of the Clarence DeMar Marathon

The Clarence DeMar Marathon is a long-standing athletic event held in Keene, New Hampshire. The race is named after the historic runner Clarence DeMar and emphasizes local history and community involvement. The event features a variety of distances to accommodate different participants:

  • Marathon
  • Half Marathon
  • Kids DeMar
  • Super Seniors Marathon

The courses are scenic and take runners through the New England landscape. The final third of the race route is designed to run through and around the town of Keene. The event is supported by a large network of local volunteers, with roughly 500 individuals assisting during the race weekend.

Participants in the marathon and half marathon receive large medals upon completion. The event weekend includes a schedule of activities featuring keynote speakers from the long-distance running community. The marathon serves as a qualifier for other major racing events. The race field typically accommodates several hundred runners for both the full and half marathon distances, maintaining a community-focused atmosphere where participants are treated as guests of the town. Visit the organization's website for the most recent information.

Marathon
Super Seniors Marathon
Marathon
Marathon
Half Marathon
Half Marathon
Kids Demar
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