Trail Running Calendar Massachusetts 2025-2026

Seth’s Fat Ass 50K at Forest Park in Springfield on December 20 invites runners to tackle between one 5K loop and the full ten loop 50K in a festive, low key winter setting. Enjoy scenic roads and trails, event swag and a seven hour limit.

Join a friendly, informal 5 to 10k run or snowshoe on a roughly 10k course with loaner snowshoes available. Bring a spare pair to share, enjoy light refreshments, and team up for bragging rights and a shared baked treat.

Tackle the TARCtic Frozen Yeti at Hale Education in Westwood MA on Feb 7 and 8 2026 with a 30 hour challenge or a 15 mile looped race. Expect well marked winter trails, regular aid and proceeds supporting land conservation.

Join Ramsey's Run in Kingston MA on March 14, 2026 for a scenic 5k trail run through the woods, timed by a professional company. Honor a class of 2023 member and support a family scholarship with every entry.

Run scenic singletrack loops around ponds and woodlands at Hale Education in Westwood, with a 6 hour endurance option or a 3.5 mile loop. Bring your own bottle for this cupless event and enjoy a laid back aid station at the start.

Join the Tortoise and the Hare Trail Races in Salisbury on April 4, 2026 for trail 10K, 5K and a fun 1 Mile Color Run. Enjoy custom tech shirts, post race music and snacks while supporting Salisbury Parks and Recreation.

Scenic 10 mile out and back trail run along the Merrimack River on April 11, 2026, part of the North Shore Trail Series. Post race bagels, snacks and prizes await and all net proceeds support Merrimack River Trail maintenance.

Hit the trails at Wompatuck State Park in Hingham MA with 5K, 5 mile and 8 hour lap options for all abilities. Expect muddy April trails, on course aid and a community feed, with registration closing April 10 and a 50 runner cap for the 8 h..

Run the TARC Spring Classic at Jericho Town Forest on April 26, 2025, choosing distances from 10K to 50K plus a free youth fun run. Enjoy a smooth, relatively flat looped trail with one aid station offering vegan friendly options.

Tackle the scenic Seven Sisters Trail Race in Amherst, MA on May 2, 2026, an out and back along the Holyoke Range ridgecrest. This rugged 12 mile course delivers steep climbs, rocky singletrack and over 3,500 ft of elevation for a thrilling..

Take on the Dandelion Dash 5K or the Mushroom Mile on The Hartsbrook School trails, with a virtual option available. Muddy, scenic terrain and proceeds support the school's Land Stewardship program.

Hit the trails at the Cape Cod Trail Race on May 3, 2026, with 10K, 20K and 30K options through the scenic Frances A. Crane Wildlife Management Area. Register soon for a community focused day of challenging trails and postrace camaraderie.

TARC Wapack and Back is a rugged trail race along the Wapack Trail in Ashburnham offering 21.5, 43 and 50 mile options. Expect technical rocky singletrack, big climbs and limited entries so register early for a backcountry challenge.

Run the Free Spirit 50K in Leyden, Massachusetts and enjoy a scenic New England ultramarathon. The course follows dirt roads past historic farms, leafy woods and an 1870s covered bridge for a rewarding, challenging day.

Hit the trails at the Wildcat 5K Trail Run Walk Wag in Boxford on May 30, 2026, for a scenic 5K through Wildcat State Forest with pond views and separate courses for runners and walkers. Enjoy post race treats, swag, and prizes for top fini..

Run a scenic 3 mile trail through farm fields and finish among the vineyard rows at Westport Rivers Vineyard and Winery. Celebrate after with wine, music, BBQ and a souvenir glass for a festive postrun party.

Explore rugged singletrack and an old railroad bed on a tough 5 mile loop at the Flat Rock Trail Race in Dunstable MA. Proceeds benefit the Humane Society for Greater Nashua and runners can repeat loops for up to six hours.

Notchview Ultra invites runners July 10 to 13, 2026 in Windsor, MA, offering formats from 100.7 miles down to 6 hour on a scenic 1.9 mile loop. Enjoy frequent aid, camping, swag, and proceeds supporting local conservation.

Join the Sweltering Summer Ultra, an 8 hour track challenge at Clapp Park in Pittsfield where runners and walkers lap a cinder loop and hit a marathon split. Chip timing, live leaderboard, refreshments and awards support the AYJ Fund.

Run the Jug End Loop Ultra on August 22, 2026 at Jug End State Reservation in Egremont MA, a six hour timed event on a scenic, hilly 4.2 mile loop through woods and an apple orchard. Rack up laps, earn a handmade mug and support local chari..