Clarence DeMar Marathon
Always double-check with the organizer's website! This page may contain affiliate links.
Clarence DeMar Marathon (Keene, NH)
The Clarence DeMar Marathon is scheduled for Sunday, September 28, 2025, in Keene, New Hampshire. The event is the 47th running and includes multiple race options. Distances and categories listed include:
- Marathon
- Half Marathon
- Kids DeMar (children's marathon event)
- Super Seniors category
Course, participation and event details
The course route runs through the area around Keene, with the final third of the course passing around and through the town. In 2019, roughly 500 volunteers supported the event, and the field size that year was approximately 400 marathoners and 450 half-marathoners. The event maintains pages for race descriptions, race results, logistics, and a race weekend schedule. Sponsors and community organizations support the event at multiple levels. The event lists a Keene contact address for the organizing committee. Visit the organization's website for the most recent information.