Trail Running calendar near Danbury 2026-2027

Part of the Grit Series at Dublin Outdoor Center, this trail event offers a 10K and a half marathon over rugged trails with significant elevation gain and views of Mount Monadnock. Registration runs May 3 to June 6, 2026.

Muddy Princess Boston is a women only 5K obstacle mud run at Kimball Farm in Haverhill on June 21, 2026. The course has 18 plus obstacles and is open to women aged 7 and up who may run, jog or walk.

Mansfield Uphill is a 1.7-mile uphill race at Stowe Mountain Resort on June 21 and October 18, 2026, with proceeds supporting the Mansfield Nordic Pro Team. The field is limited, prizes are awarded at Midway Lodge, and a team Q&A follows.

A 72-hour endurance race in Pittsfield Vermont on June 26-28 2026 combining physical obstacles, navigation, and mental challenges. Tickets for the Death Race require a promo code issued after acceptance by the race director.

A three-stage Hurricane Heat endurance event at Riverside Farm on June 26-27, 2026, offering 4, 12, and 24 hour tiers that together form a full 24-hour challenge; entry is 18+ with 40+ challenges and team registration options.

A 24 hour endurance event in Pittsfield, Vermont on June 27 to 28, 2026. Runners repeat a two mile loop with 970 feet of elevation gain as they compete for most laps or aim to last the full 24 hours.

A single 8.2 mile trail race at Killington Resort on June 27, 2026 with 3,010 feet of elevation gain and three summit climbs. The field is capped at 700 runners and includes aid stations, race swag and professional photos.

Ultratrax Cranmore in North Conway, NH is a single day endurance walk on June 27, 2026 offering 7, 14, 21 and 28 mile loops with a 10 hour cutoff. The course follows forest singletrack and old ski trails with aid stations and timed results.

A Spartan obstacle weekend at Carter and Stevens Farm in Barre, MA on June 27 and 28, 2026 with Sprint, Super, and kids races, plus an obstacle workshop and spectator access.

A charity team challenge on June 27, 2026 in Bristol, NH that recreates Special Forces mission tasks. Teams of 6–12 choose Operator or Recruit levels, with awards for top teams, MVPs, fundraising leaders, and participant milestones.

A fifteenth annual trail run in Webb Forest, Sunapee NH on June 28, 2026, covering about 4.5 miles to benefit the Sunapee Middle High School Track and Field program. The course features scenic single-track trails and a raffle of sponsor pri..

A well marked 5k trail run and walk in Rochester, Vermont, organized by Pierce Hall Community Center and Ridgeline Outdoor Collective, following single-track trails and local connectors around River Brook Park.

A family-oriented point to point 5k in Tamworth on July 4, 2026 featuring village streets and woodland trails, a bib raffle, ice cream from Papa Beans, and commemorative gifts for registrants.

A July Fourth run in Springfield VT along the Black River offering 7.4K and 4K distances plus virtual options, benefiting Springfield High School Cross Country. Family rates, on-site packet pick-up, and post-run refreshments are provided.

A weekend trail running event in Brownsville Vermont offering a 5 mile Yellow Loop plus timed 6 hour and 24 hour ultra options on technical singletrack and ski run terrain. Camping at Ragnar Village and on-site amenities are available.

A seasonal trail race at Blueberry Hill Outdoor Center on July 11 2026 offering 5 km and 10 km plus backcountry courses through forest and a Hogback Mountain viewpoint, with proceeds supporting local trail maintenance.

A looped trail 50K at Spaulding Academy in Northfield, NH featuring five 10K technical loops, about 32 miles and 4,000 feet of gain. Ten hour race limit, cupless format, and support for Spaulding Academy & Family Services.

The 46th annual Bear Swamp Run is held July 11, 2026 in Middlesex, Vermont, featuring a 5.7 miles course from Rumney Memorial School. Age-group and gender divisions are included, with awards for overall and age-category top finishers.

A roughly six-mile uphill trail race to Loon Mountain’s North Peak with about 3,066 ft of climb, very steep sections including the one-kilometer Upper Walking Boss, two fluid stations, and over $20,000 in prize money.

A July ultramarathon in Vermont offering 100 mile and 100 kilometer options, featuring 17,000 feet of climbing over country roads and forested trails. Proceeds benefit Vermont Adaptive Ski & Sport and a concurrent horse race accompanies the..