Trail Running calendar near Danbury 2026-2027

Whites 100 in Shelburne, NH on September 11, 2026 is a non-competitive, fat-ass-style trail event offering five drop bags, bin transport and an online tracker. A refundable $200 bin deposit is required and a 54-hour support cutoff applies.

Trail races at Bear Brook State Park in Allenstown, NH include a variable-distance ultramarathon likely 50k to 100k and a half marathon. The course is GPX only with minimal markings and aid stations are cup free.

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 community races at Springfield Dam include a free kids 0.5 mile, a 1 mile Maniac Mile for ages 10 and up, and a scenic 3.1 mile course with trails, food vendors, and family activities.

A trail race in Groton Forest hosted by Onion River Outdoors on September 12, 2026 offering 25K and 12K distances. Volunteers receive a free lunch, a neon orange ORO hat, and free entry to select future events.

Experience a fun inflatable obstacle course at Butterfield Park. This 1 mile run or walk supports 6th grade students at Fisher Hill School in reaching their educational trip goals through community participation.

A September mountain race at Echo Lake State Park offering a five mile course and a half marathon that climbs over 4,300 feet of vertical. Courses run on granite ledges and exposed ridges with remote aid stations.

Pisgah Mountain Trail Races in Chesterfield, NH offers 50k and 23k mountain trail ultraruns on Sunday 9/13/26. Aid stations provide LMNT, Tailwinds, and Untapped and proceeds support New Hampshire Special Olympics.

GBTC XC Invite in Carlisle, MA features youth and Open/Masters cross-country races at Great Brook Farm State Park on September 13, 2026. Distances include a 2K youth race and multiple 5K races; registration runs August 1 to September 11.

A mountain run following the Mount Washington Cog Railway tracks to the summit in Bretton Woods, NH, with a 2.75 mile climb or a 5.5 mile roundtrip option, hourly train return from the summit, and a $1,000 prize opportunity.

An obstacle course weekend at Killington Ski Resort on Sep 19 to 20, 2026 featuring Sprint, Beast, Ultra and kids races with spectator access.

Kilkenny Ridge Race in Stark New Hampshire offers 50 mile, 25 mile and 25K courses on unmarked ridge trails with remote backcountry aid.

Experience the summit of Mount Agamenticus with a 5K or 1 mile trail race. Support local conservation efforts while running or hiking through Maine trails and participate in a raffle for all entrants.

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 trail-based 5K run/walk and a 3K walking route at Mine Falls Park supporting Meals on Wheels of Hillsborough County, with a $30 registration and a 2026 event T-shirt for early registrants.

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.

An 18 mile out and back trail race in New Ipswich, New Hampshire, climbing toward Watatic Mountain Reservation with technical, rugged single-track terrain. Registration opens June 15 2026 and the fee is $55.

TAM Trek is a trail race and fun run in Middlebury, Vermont supporting the Trail Around Middlebury. Events range from a full 19 mile route around the village to shorter trail races and a family friendly two mile run.

A 5K trail race at Loon Mountain on September 20, 2026, as part of the 51st NH Highland Games, with 800 ft of elevation gain across dirt trails, service roads and ski trails. Registration includes a race shirt and festival admission.