Remarkable course. Deep roots.
The Clarence DeMar Marathon and Half Marathon have heart—and history.
Read more about Clarence DeMar
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
Keynote Speaker for 2024
Bobbi Gibb, author, artist and trailblazer athlete who was the first woman to run the Boston Marathon.
Race Weekend Schedule
We appreciate the support of all our sponsors
DeMar Level
Qualifier Level
Half Marathon Level
Water Station Level
Kids DeMar Level
G&H Stingray
Course Level
Tim Small Sales, LLC
S&S Painting
The Kingsbury Fund
Quality Care Collision
Bergeron Construction
Keating Plumbing and Heating
Bellavance Beverage Company
Lab 'n Lager
MHS Architectural Millwork
Jaffrey-Rindge Rotary Club
NH Forge, Inc.
RE/MAX Town & Country
Glenn & Laurie Lamothe
Foley Funeral Home
Sam's Outdoor Outfitters
M Ann Ricksecter & David Smith
Chesterfield Lions
Friend Level
Primerica - Financial Abundance International
Nancy Petrillo
Monadnock Conservancy
Rich and Karen Shea Dufresne
Davis Oil
Keene Elks Lodge #927, in memory of Albion Ellis Sr.
Basic Balance Acupuncture
The Pub Restaurant and Catering
Yankee Publishing
Ward Legal Group
John Irminger