Trail Running Calendar Massachusetts 2026-2027

Notchview Ultra in Windsor, MA runs July 10 to 13, 2026 and offers multiple timed and distance events from 6 hours to 100.7 miles. The race uses a groomed 1.9 mile perimeter loop with an aid station and on-site amenities.

An old school 12K trail run at Blue Hills Reservation with about 2,300 feet of climbing over rocky, steep terrain and staircase sections. Minimal aid and a 150 participant limit mean participants are expected to carry hydration.

A 12 hour loop run in Lawrence Woods, Medford, MA on July 18, 2026. The roughly four mile loop has minimal aid and space for participants to set up personal stations near the course.

Two trail-focused races at Beartown State Forest in Great Barrington, MA: a 5-mile loop around Benedict Pond and a roughly 13.5-mile half with significant climbing and technical terrain. The event is cupless with limited parking and shuttle..

Muddy Dash Boston is a family-friendly 5K mud run at 508 INTL Adventure Sports Center on August 1, 2026, with obstacles, mud pits and slides, plus a pre-party and an after-party with music and food.

A community fundraising day in Groton, MA on August 5, 2026 featuring an 8.4 mile three-person relay, kids single-loop race and Little Lambs mini runs, followed by barbecue and activities, with proceeds to six local charities.

A four mile beach run at low tide on Nantasket Beach in Hull, Massachusetts. The out and back course starts near the Mary Jeanette Murray Bath House and raises funds for Hull Boosters and The Emma Ryan Memorial Fund.

An eight hour track event at Clapp Park in Pittsfield with a virtual option, chip timing, on course bottle drop aid, and age division awards. Proceeds support the AYJ Fund and several discount codes are available.

A trail event at Noon Hill Reservation in Medfield offering a 10 mile loop plus 50K and 40 mile ultra options, mostly singletrack with roots, rocks, and a scenic Noon Hill vista; proceeds benefit The Trustees of Reservations.

A multi day timed trail event on a Winchendon farm using a roughly two mile loop. Runners choose from six hour day or night, 12 hour, 24 hour, or 48 hour formats under the Sturgeon Moon.

A 5K off-road trail run, walk, and hike at White Barn Farm through Wrentham conservation land. The event is part of the Farm to Trail 5K Series and raises funds to support local agriculture and food pantry donations.

A chip-timed 5K run/walk at Brimfield Winery on a two-lap grass course with hills, race swag, a wine pour, and age group awards; a one-lap 1.5 mile division is available.

A 4.2 mile loop ultra at Jug End State Reservation in Egremont, MA. Runners may complete as many 4.2 mile laps as they wish within a six hour limit; partial laps do not count and a 0.75 mile mini loop is available in the final hour.

Trail runs over Vineyard Hill and through Bradley Palmer State Park offering 5K and 10K courses with one Start/Finish aid station, local prizes, and chip timing as part of the North Shore Trail Series.

A 5K cross country race at Waters Farm in Sutton Massachusetts that opens the USATF New England XC Grand Prix series. Separate men's and women's open races, on site registration, and a post race awards ceremony.

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 timed, summit-driven trail event on Wachusett Mountain offering 7, 14, 21, and 28-mile options, optional weighted vests for bonus swag, and up to 10 hours to complete the marked course.

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 trail 5K at Felix Neck Wildlife Sanctuary in Edgartown on September 5, 2026, with a 0.25 mile kids run for ages eight and under. Registration has set fees and bib pickup is handled at the sanctuary and proceeds support conservation.

A trail running event in Pittsfield State Forest offering 50K, 25K, 15K and 5 mile options on a double-loop course with significant climbing; proceeds support Free to Run, Inc.