Trail Running calendar near Merrimack 2026-2027

Mountain up-and-down race at Cranmore Mountain in North Conway offering 10 km and 5 km options, USATF sanctioned and $7,500 in prize money for 2026.

A six hour weighted trail race in Mansfield, MA on October 17, 2026 where runners complete as many 2.5 mile out-and-back laps as they can, scoring pound-miles called Kz by multiplying lap distance by the weight carried.

A 4.1 miles trail race in Ravenswood Park, Gloucester, held October 18, 2026, as part of the North Shore Trail Series. The course uses single-track and carriage roads, with online registration closing October 15 and race-day registration av..

Join a community trail race through the diverse terrain of Wompatuck State Park. Choose between a ten mile loop or a 50K distance on a course featuring rail trails and single track paths.

A harvest-season 5K trail event at White Barn Farm in Wrentham with off-road terrain, a midway water station, bib pick-up the day before, family Harvestween activities, and a portion of registrations donated to the local food pantry.

A fall trail race at Mt. Tom State Park on October 24, 2026, with single and relay options from 5k to 25k on rugged single-track terrain. The event supports Kestrel Land Trust and includes aid stations, medical crews, and awards.

A 5K on October 24, 2026 at Stratham Hill Park that runs along Great Bay and benefits Great Bay Stewards; the mostly downhill course includes a race shirt for timely registrants and a bib with a beer or cider coupon.

A backyard ultramarathon and festival at Waters Farm in Sutton MA where runners complete a 4.167 mile loop each hour on the bell until one remains. The weekend features live music, hay rides, a kids fun run, farm tours, and local food.

A 4.9 mile mountain trail race in Keene, NH featuring four up and down laps on varied ski and single-track trails, with proceeds and food donations benefiting the Keene Community Kitchen.

A fall trail 5k in Berkley MA combining running, rucking, and walking to honor military, first responders, and K9s. Dogs are allowed on leash with a waiver and proceeds support local canine and service organizations.

Trail races through Powisset Farm and Noanet Woodlands in Dover MA with 8.6, 5.6, 3.1 and 1.5 mile options, post-race cider donuts and family activities.

A fall trail event in Harvard on October 25, 2026 featuring a 5K through orchard and woods plus a 1 mile kids fun run, with age divisions, awards, shirts, and proceeds benefiting the Harvard Conservation Trust.

A stadium stair-climb at Gillette Stadium where participants run, walk, or roll through about 5,184 steps in support of Homes For Our Troops. The event offers team and wheelchair waves, optional fundraising, and spectator registration.

Holistic Hustle in Kennebunkport features a timed 5K, a trail 10K and a kids half mile fun run at Emmons Preserve on October 31, 2026. The community fundraiser includes music, family activities, finishers medals and a raffle.

A costumed 5K trail run on October 31 2026 at Wells Reserve at Laudholm. Timed course with water stations and awards, with proceeds supporting coastal conservation and restoration.

Hugs From Vets Trail 10Kish in Henniker, New Hampshire on November 1 features a mixed trail and country road course and raises funds for American Legion Post 78. The field is limited to 150 participants and awards are given to overall and a..

Obstacle course weekend at Fenway Park with a Stadion 5 km featuring 20 obstacles, kids races and spectator access on November 7 and 8, 2026.

The Hamsterwheel in New Boston, NH features timed 6, 12, 24 and 30 hour events on a scenic 4.0 mile loop along the New Boston Rail Trail, with chip timing, a central aid station, team entries, and buckle awards for 100 miles.

A November trail festival at Willowdale State Forest in Ipswich offering multiple looped distances from a 10K to 100K, a Cider Donut Mile, and a flagged 0.5‑mile youth run, with cupless aid stations and fundraising for local land trusts.

A last runner standing backyard ultra on private farmland in Winchendon with a 4.1666 mile loop. The event also offers 6 hour, 12 hour and 24 hour timed options plus a standalone fastest lap competition.