Trail Running calendar near Mansfield 2026-2027

Trail trail-running event in Carlisle, MA on September 5, 2026, with distances from 10 km to 50 miles, a free youth run, and novelty Yeti Mischief Mile divisions; online registration is limited and has an August 31 deadline.

A community 5k in Nashua on September 5, 2026 with on site registration, free entry for kids, and free T shirts for those who register by July 20. Live results will be posted on millenniumrunning.com.

A 5K trail run and a 1/4 mile kids fun run at Felix Neck Wildlife Sanctuary in Edgartown, MA, with scenic trails and birdlife. Proceeds benefit the sanctuary's wildlife protection, education, and conservation programs.

Trail races at Bear Brook State Park near Allenstown, NH featuring a variable-distance ultramarathon and a measured half marathon. The course is GPX only with minimal markings and runners must carry their own water containers.

A group run along the Farmington Canal Heritage Trail covering roughly 56 miles from West Suffield to New Haven, held as a fundraiser for Mental Health Connecticut. The event is largely self supported with basic volunteer aid stations and a..

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.

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.

A free 3 mile out-and-back beach run at Westerly Town Beach held at low tide. The community event is organized by the Westerly Track Club and the Stavros family as a memorial run.

A community 5K trail race in Hooksett that runs from Heads Pond trail through wooded conservation land to the Hooksett Public Library. A separate 0.5 mile kids fun run is available and proceeds 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.

A community 5K in Jaffrey, NH offering a woods trail and a rail trail out and back. Proceeds support the volunteer Jaffrey Firefighters Company and equipment needs of the Jaffrey Fire Department.

A one mile obstacle course in Warren, RI with two giant mud pits, kids play area, food and giveaways. Proceeds support Thrive Outside and its programs to expand youth access to nature.

An 18 mile out and back trail run from Windblown Ski Area toward Watatic Mountain Reservation, featuring steep, technical single track and uneven terrain. Prior trail running experience is strongly recommended.

Experience the technical terrain of Cockaponsett State Forest with 4 and 9 mile trail races. Navigate hills and rocky paths in Chester to support PanCAN and the Blue Blazed Trail Race series.

The Arc'teryx Run Boston will take place in Milton on Sunday 20 September 2026. You can run 10 kilometers.

A 5K trail run at Goddard Park in Warwick, RI on September 26, 2026, with a bayside course and start and finish near the golf course clubhouse. Open to all ages, with published entry fee tiers and on site parking and facilities.

An inclusive multisport festival at Pawtuckaway State Park on 09/26/2026 offering a 0.4 mile swim, 5.5 mile trail bike and 3 mile run in single sport, two sport, relay or full triathlon formats. No chip timing; safety gear is required.

A trail based 5K obstacle course race at Wasserman Park on September 26, 2026, featuring 12 or more beginner to intermediate obstacles. Entry is limited to 200 participants and the fee is $40.

An all-trail event on the Moosup Valley State Park Trail in Moosup, CT offering 5K, 8K, 10K and a free Kids Fun Run with post-race shirts or medallions and food at Weidele's; proceeds benefit a local Rotary charity.

Trail races at the Assabet River National Wildlife Refuge in Sudbury MA include a 10K, a 30K and a 6 hour timed event. The course uses dirt and gravel double track trails with two aid stations and cupless fueling.