Trail Running calendar near Brookline 2026-2027

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 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.

Ocean State Ultra in West Greenwich, Rhode Island (August 29–30, 2026) offers a 100 mile race with a 34 hour limit plus 12 and 6 hour loop events; registration runs March 30 to August 17, 2026.

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 scenic 10 km trail loop in Perkinsville Vermont that passes three dams and includes a low river crossing with a rope and lifeguard. Post-run refreshments and a nearby swimming hole are available at the finish.

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.

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 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 group, end-to-end run along the Farmington Canal Heritage Trail from West Suffield to New Haven, roughly 56 miles, raising funds for Mental Health Connecticut. The route is largely flat and unsupported with a 14 hour completion cut off.

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.

Pisgah Mountain Trail Races in Chesterfield, NH offer 50k and 23k trail ultramarathon distances on Sunday September 13, 2026, with aid stations carrying Tailwinds, Untapped, and LMNT and proceeds benefiting New Hampshire Special Olympics.

An annual community trail event at Mount Agamenticus offering timed **1 Mile** and **5K** courses from the summit, with proceeds supporting conservation and education and a raffle for participants.

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 at Pomfret Community School featuring a 5K trail run and a 0.5 mile kids fun run, with early and late registration tiers, age and gender awards, and finisher medals for all participants.

Pair up for a three hour endurance relay on a two mile loop of trails and fields. Alternate laps with your partner to accumulate the maximum distance possible in this team based challenge.