Remarkable course. Deep roots.

The Clarence DeMar Marathon and Half Marathon have heart—and history. Read more about Clarence DeMar
DeMar runners at start

DeMar: The race to run in New Hampshire.

Whether you’re a first-timer or a 50-stater, there’s only one race to run in New Hampshire. At DeMar, you’re not treated as an entrant, but a guest of honor. See what makes DeMar different

2018 Keynote Speaker: TBD

We are working on securing our 2019 Keynote Speaker. Check back soon!

What others are saying about the DeMar Marathon

  • A lovely small marathon that is very well organized and supported. A big thank you to the race director for not cancelling due to the heat – as someone working on 50 States, this was huge. The ice at every water stop was tremendously helpful as were the misting stations. Great volunteers all along the course, good food at the end, and lots of it!

    Cathie 2017
  • “I had the privilege to run in famously scenic places and this marathon is up there with the best.”

    2014 Marathoner, Boston, MA
  • “This is a small race in a gorgeous part of New England. It is extremely well-organized, designed for runners. It is special because of the heritage and the man it honors, the volunteers and organizers LOVE their race, and it features the beauty of New Hampshire.”

    2015 Marathoner, Colorado Springs, CO
  • “As good as a small race gets. Spot-on organization with race day packet pickup and easy logistics. Indoor staging area with plenty of room to stretch and lots of bathrooms. Free parking close to the finish. Medal and shirt are first rate. My new favorite small marathon.”

    2015 Marathoner, Pittsburgh, PA
  • “The first 15-16 miles or so are absolutely beautiful New England countryside. The race is extremely well organized, and most everyone involved with the race was positive and friendly. No crazy crowds or hassles!”

    2014 Marathoner, Concord, MA

We appreciate the support of all our sponsors

DeMar Level

hoffman family foundation logo

Savings Bank of Walpole logo

Qualifier Level

City of Keene Logo

Half Marathon Level

Ted's Shoe & Sport logo

True North Networks logo

Filtrine logo

Deep Roots Massage Logo

AFHY logo

Water Station Level

Body & Soul Fitness logo

Keene Sentinel logo

The Insurance Source logo

John G. Burk & Associates logo

C&S Wholesale Grocers logo

Hogancamp PC logo

Hamblet Electric logo

S&S Painting logo

Melanson Logo

Ken Jue & Associates Logo

KSC Logo

AMT productions

foley funeral logo

monadnock broadcasting group logo

ann henderson interiors logo

Marion Lefrancois in Memory of Ellen Lefrancois

Tom Putnam and Family

Kids DeMar Level

C&S Wholesale Grocers logo

Bragdon & Kossayda logo

Thomas S. Bates CPA logo

IPG Employee Benefits logo

St. Martins Lane logo

Griffin Construction logo

Precitech logo

Whitney Brothers Logo

Keene Auto Body Logo

Masiello Insurance Logo

Carlisle Logo

Lindy's Diner Logo

edward jones logo

w.s. badger logo

beeze tees logo

Course Level

Friend Level