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Clarence DeMar Marathon & Half Marathon
September 29, 2019 @ 7:00 AM – 5:00 PM EDT
The Clarence DeMar Marathon was established in 1978 to honor former Keene resident Clarence DeMar. The marathon has operated consecutively for 38 years. We currently offer two competitive races, a Full Marathon and Half Marathon, and two community wellness programs: the DeMar Kids Marathon and DeMar Super Senior Marathon.