Trail Running calendar near Chelsea 2026-2027

We have found 117 Trailruns within 80 miles of Chelsea. See below where and when you can find the races.

Timed 6 or 12 hour running event on a 1.8 mile loop with varied trail surfaces and 280 feet elevation per loop, held at Chester town park with basic support and on-site park amenities.

The 15th Annual 5k Race to the Ledges in Concord, NH on August 8, 2026 features a short road and trail course and includes post-race brunch boxes to take away. Registration includes an adult 5 km entry and a free kids 5 km for ages 6 and un..

Trail races at Mt Van Hoevenberg on August 8, 2026 offer 10K, half marathon and 50K courses over single track and steep terrain. Start and finish are in the venue stadium and course maps are provided.

A weekly trail running series at Catamount Outdoor Family Center in Williston, VT offering 5 km and 2.5 km options with adult and youth entry categories. Races run rain or shine and follow a published thunder and bib policy.

A multi distance trail event in the White Mountain National Forest near Waterville Valley, New Hampshire held August 14 to 16, 2026. Races include 100 mile, 50 mile and 20 mile routes with substantial elevation gain and mandatory mountain g..

A 4.61 mile trail race at Moody Park in Claremont NH featuring narrow single track, wet sections and a steep drop and climb at Gravity Cavity. The event is part of the Western NH Trail Running Series and benefits the local parks department.

A scenic trail 5K on Wanakee’s 227 acre site in the White Mountains and Lakes Region of New Hampshire, held during Wanakee Homecoming. Proceeds support a camp scholarship fund and facility improvements.

A family friendly 5K on the Webb Forest trails organized by Wilmot Learning Place, featuring a signed course, water stations, timing for runners, post-race recognition, and nearby parking with overflow at local fields.

A community run at Oxbow Riverfront Park on August 15, 2026 along the Lamoille Valley Rail Trail with a 1.5 mile turnaround, one aid station, post-race refreshments, and awards for top finishers.

A biannual mountain trail race around Mount Mansfield covering about 11 miles and 5,000 ft of gain, featuring steep technical climbs, exposed alpine terrain and a strict 70-runner field with time-based qualification and limited refunds.

Weekly trail races at Catamount Outdoor Family Center in Williston, VT, with 5 km, 2.5 km half lap, and a cubbies category for ages 5 and under. Events run rain or shine with a stated thunder and cancellation policy.

A trail ultramarathon at Prospect Acres Ranch where runners complete repeated 2.2 mile laps in 2, 4, or 8 hour formats. Field camping is available Friday evening and registration is $40 with proceeds supporting future events.

A weekly trail race series in Williston, VT offering 5 km and 2.5 km options with adult and youth categories, bib pickup and on-course water refill. Events run rain or shine and follow a posted thunder and cancellation policy.

A trail race weekend in Waterville Valley NH with a 50K ultra, 23K, 4 mile and 1 mile family fun run. Courses use single and double track, have cup less aid stations, and include finisher awards and podium 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.

A mountain fundraiser in Stowe on August 30, 2026, featuring a 4.3 mile climb to Mt Mansfield for runners, hikers, and cyclists, plus a kids run, team options, donations, and event merchandise supporting the Catamount Trail Association.

September 2026

A weekly trail running race at Catamount Outdoor Family Center in Williston, VT, offering 5 km and 2.5 km courses with adult and youth categories. Races run rain or shine and follow a clear thunder and bib policy.

A weekly fall trail running and walking series at Great Glen Trails in Gorham, NH from Sep 3 to Oct 8, 2026. Choose from 5 km, 3 km or 1.5 km courses; dogs on leash are welcome and one-time entries are available on-site.

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.

A two-day trail running festival at Jay Peak, Vermont, with seven races from a kids trail to a 53.1 km ultra featuring significant elevation gain and varied terrain, plus on-site lodging and resort amenities.

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