Trail Running calendar near Merrimack 2026-2027

We have found 141 Trailruns within 80 miles of Merrimack. See below where and when you can find the races.

A 5K cross-country race at Waters Farm in Sutton, MA, marking the fourth running of the Old Goat Track Club XC Classic with on-site parking, finish-line water and fruit, portable toilets, and awards for individual and team results.

A trail race weekend in Waterville Valley, New Hampshire, offering *50K*, *23K*, a 4 mile trail, and a 1 mile Bear Cub Fun Run; the 50K includes 7,700 feet of climbing and requires specific mandatory gear.

An inclusive trail festival at Northfield Mountain on August 29, 2026 that centers queer and trans runners and allies. It offers a 20k prediction race, an untimed 5k fun run or hike, and a Kid's Run with community-focused prizes.

A 10 km race at Power Dam Recreation Area in Perkinsville, VT on August 30, 2026, part of the Western NH Trail Running Series. Online registration closes August 28, 2026; youth entries are free and age-based fees apply.

Timed loop trails on Wachusett Mountain with 7, 14, 21, and 28 mile options over ski slopes and single-track. Participants have 10 hours to finish, with weighted vest options and marked courses; finishers receive a shirt and patch.

September 2026

Trail Animals Running Club hosts a multi distance trail event at Great Brook Farm State Park on September 5, 2026. Looped 10K and 10 mile courses cover distances from 10K to 50 miles, plus a youth fun run and a Yeti Mischief Mile.

A looped trail event in Gorham, ME held the first week of September, offering a 50K over 12 laps, a 25K over 6 laps, and a 10K. Aid is provided each lap and volunteers track runners.

A community 5K run and walk in Nashua, NH on September 5, 2026 with free registration for veterans and children, a fee for participants 13 and older, event shirts, donation options and volunteer opportunities. Use #nashua5k for photos.

A trail running weekend around Mirror Lake in West Newfield, Maine, with laps of about 3.6 to 3.8 miles through forest roads and singletrack. The weekend includes a Saturday gravel ride, onsite camping, youth runs, and a post ride gathering..

A lakeside trail run in Goshen, New Hampshire on September 5, 2026, with 3 mile and 5.7 mile courses, awards, swag, and a raffle. The longer distance awards points in the Western NH Trail Running Series.

Trail races at Bear Brook State Park near Allenstown, NH offer a GPX navigated half marathon and a variable ultramarathon between 50k and 100k, with minimal course markings and cup free aid stations.

A Keene State College alumni cross-country meet on 09/12/2026 at the Keene State Athletic Complex featuring a men's 5K and a women's 2 Mile race; registration runs 09/06 to 09/12 with a $25 fee per event.

Thunder Run is a 5K trail race with more than 20 obstacles through woods and hills in Candia, New Hampshire on September 12, 2026. Organized by Raymond Area Rotary, 100% of proceeds support local and selected international projects.

Three events at the Springfield Dam on 09/12/2026 include a kids 0.5 mile, a one-mile Maniac Mile for ages 10+, and a 3.1 mile trail run with views of Mt. Ascutney. Food vendors and family activities are planned.

A September mountain race at Echo Lake State Park offering a five mile course and a half marathon that climbs over 4,300 feet of vertical. Courses run on granite ledges and exposed ridges with remote aid stations.

Trail races in Pisgah State Park near Chesterfield, New Hampshire offering 50K and 23K distances, organized by the Red Clover Rovers as a fundraiser for the Special Olympics of New Hampshire.

A USATF New England Cross Country Grand Prix meet at Great Brook Farm Ski Touring Center in Carlisle, MA on September 13, 2026, featuring a youth 2K and several 5K races across open and masters categories.

Experience the summit of Mount Agamenticus with a 5K or 1 mile trail race. Support local conservation efforts while running or hiking through Maine trails and participate in a raffle for all entrants.

Experience a scenic run through wooded conservation trails finishing at the Hooksett Public Library. This community event features a 5K trail race and a half mile kids fun run to support local youth programs.

A community fundraiser in Pomfret Center with a trail 5K and a 0.5 mile kids run supporting the Pomfret Community School PTO. Early and later registration fees differ and awards plus finisher medals are given.

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