Clarence DeMar Marathon
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Clarence DeMar Marathon - Keene, New Hampshire
The Clarence DeMar Marathon and Half Marathon are held in Keene, New Hampshire. The 48th running is scheduled for Sunday, September 27, 2026. Multiple race categories are offered alongside the full and half events.
The course passes around and through the town of Keene in its final third. In 2019 the event involved roughly 500 volunteers and had a field size of about 400 marathoners and 450 half-marathoners. The race maintains a record of community support and local participation.
The event is supported by a mix of local and regional sponsors, including municipal and business partners. Contact mail is listed as PO Box 1786, Keene, NH 03431.
Distances and race categories: Visit the organization's website for the most recent information.
- Marathon
- Half Marathon
- Kids DeMar
- Super Seniors
