Clarence DeMar Marathon

Keene, New Hampshire, United States

Sep 27, 2026 - Sunday

Half-marathon, Marathon

Race Information

The Clarence DeMar Marathon was established in 1978 to honor former Keene resident Clarence DeMar. The event offers two competitive races, a Full and Half Marathon, and two community wellness programs: the DeMar Kids Marathon and the DeMar Super Senior Marathon.

The DeMar Marathon course runs through the exquisite New Hampshire countryside. The USATF-certified course includes stunning views of early foliage season, accessible terrain, and a finish line at the historic Appian Way of Keene State College, just steps from where marathon legend Clarence DeMar used to coach collegiate runners.

πŸ‘ Run Series Pick of the Month: Vacation Races

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πŸ˜„ Why We Like This Run
βœ… Epic scenery
βœ… The "Race-Cation" lifestyle
βœ… Sustainable strides

Why settle for a finisher’s medal and a banana in a parking lot when you could run amongst the red rock canyons of Zion National Park, through the majestic landscapes bordering Glacier National Park, or in the shadow of Rocky Mountain National Park?

Vacation Races aren't just about the miles; they’re about the memories. Curate world-class running experiences in the most breathtaking destinations in the U.S. Whether you’re a seasoned ultra-runner or a first-time 5Ker, "race day" will be the centerpiece of your next great adventure.

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Race Facts

Race Size: 500 - 1,000

Elevation: Some Hills

Course Type: Road

Boston Qualifier: Yes

Kids Run: Yes

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