Trail Running calendar near Windsor 2025-2026

We have found 49 Trailruns within 80 miles of Windsor. See below where and when you can find the races.

IronHike Spring 26 at Mohawk Mountain CT in June offers endurance routes from 15 to 152 miles for solo runners, teams and families in a flexible relay format. Enjoy basecamp camping, support stations and finisher gear.

Run a scenic 5 mile Cheshire Rail Trail from Fitzwilliam Depot to the restored Troy Depot on Saturday, June 6, 2026. Enjoy family fun, food, and festivities while supporting the Fitzwilliam and Troy historical societies.

Challenge Plattekill Mountain on June 7, 2026 in Roxbury NY with a brutal 6.5 mile climb up 3500 ft or a thrilling 5k that opens with a big climb and finishes fast downhill. Awards and finisher swag await.

Run the scenic 15.7 mile Nipmuck South Trail at Mansfield Hollow State Park, following the Nipmuck Trail along the Fenton River through woods, fields and a climb to a cliff. Proceeds benefit Connecticut trail stewardship groups and the Blue..

Manitou’s Revenge is a rugged 53 mile ultramarathon through the Catskill Mountains on June 20, 2026, featuring roughly 15,000 ft of climbing and technical, often remote terrain. Expect limited aid and a true test of endurance and trail skil..

July 2026

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.

Soapstone Assault is a rugged 5.5 mile trail race with six steep climbs and about 1500 feet of climbing. Field limited to 50 runners and parking is tight, making this an intimate but fierce challenge with post race breakfast sandwiches.

August 2026

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.

Join an 8 hour trail gathering at Crandall's Park and run as many 5K loops as you like. Potluck, raffles, prizes and a Shenipsit Striders 50th anniversary gift for those who complete at least one loop.

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..

Run the Triple Dam 10K in Perkinsville VT on a scenic loop of grassy trails, dirt roads and a shallow river crossing. Open to runners and walkers, this fundraiser for Springfield XC finishes by a swimming hole with post race treats.

Run the Old Goat Track Club XC Classic at Waters Farm in Sutton, a spike friendly 5K cross country loop and USATF New England Grand Prix stop. Perfect for teams and individual racers, with finish line snacks and a nearby after party.

September 2026

Tackle the Shawangunk Ridge Trail near Rosendale NY for sweeping Hudson Valley views across cliffs, sky lakes and rocky ridgelines. Choose 70 Miler, 30 Miler or half marathon for a rugged, self supported navigation challenge.

Macedonia Trail Race at Macedonia Brook State Park offers scenic single track and forest trails with climbs and viewpoints. Choose 50K, 25K or 12K for a rewarding day of trail running in Connecticut.

Take on the Cat's Tail Trail Marathon in the Catskills on Sept 26, 2026, a 26 mile trail with nearly 7,000 feet of climbing and rugged, scenic terrain. Aid stations, race swag and proceeds support land conservation.

The Vermont 50 is a classic late September mountain bike and ultra run at Mount Ascutney offering 50 mile and 50K options, plus family fun and kids activities on Saturday. Proceeds support Vermont Adaptive Ski and Sports.

October 2026

Tackle an Everesting relay across 61+ miles and 29,029 feet of climbing at Mohawk Mountain in Cornwall CT, with a 72 hour window to run, hike or walk. Team up and test endurance on this epic fall challenge.

Iron Hike Fall Double Kuwohi Trail Marathon Plus Relay is a timed 24 hour trail challenge covering more than 28 miles with epic elevation at Mohawk Mountain in Cornwall Connecticut. Choose solo or relay, run, hike or walk and chase a big da..

Run the winding single lane trails of Groton Town Forest with a choice of 9.5 mile or 3.4 mile courses featuring roots, rocks and rolling climbs. Limited to 250 runners, this community race supports Groton trail maintenance and finishes wit..

Tackle the rugged NipMuck Trail Marathon in Ashford CT, a 26.4 mile trail test through rocks, roots, mud and wooden bridges. Run solo or as a two person relay and expect a challenging, hilly second half that rewards grit.