Trail Running Calendar Connecticut 2025-2026

The Cockaponsett Trails to a Cure is a trail running event held in Chester, Connecticut, within the Cockaponsett State Forest. Participants can choose between a 4-mile or a 9-mile race, with the shorter distance covering the first part of the longer course. The trail features natural terrain includi..

Angevine Farm Half Marathon is part of the Angevine Farm Trail Festival in Warren, CT, hosted by Steep Endurance. The event offers a Half Marathon plus an 8-Hour option and a 5K/5K Canicross, all on scenic farm and forest trails. The Half Marathon begins at Angevine Farm, runs a 1.7-mile farm loop,..

Winding Trails TRAIL RUNNING Series #5 is a Tuesday night event at Winding Trails in Farmington, Connecticut. The 2025 edition runs five races from August 26 through September 23, with a choice of 5K or 10K on an approximately 3-mile loop. Check-in and rolling start occur in the early evening at 50..

The Tunxis Trail Ultramarathon, held in Burlington, Connecticut, features challenging and technical trail races on the Tunxis Trail system, part of the Blue Blazed hiking trails. The event offers shorter distances this year, including an 8K (5 miles) and a 5K (3.1 miles), with staggered start times...

The Moosup Valley 5K and 10K All Trail Race takes place in Moosup, Connecticut, on the newly restored Moosup Valley State Park Trail. This event features a 5K, a 10K, and a Kids Fun Run, all held on a 100% trail course that crosses only one dead-end road. The race starts and finishes at the Griswold..

The IronHike Endurance Series takes place in Cornwall, Connecticut, at Mohawk Mountain Ski Area from October 2 to October 5, 2025. The series is organized by IronHike Endurance Productions LLC, a US military veteran-owned business. Events use a FlexRelay format that allows solo entries or teams: In..

Iron Hike’s Fall Double Kuwohi Trail Marathon Plus Relay is a weekend endurance event set at Mohawk Mountain Ski Area in Cornwall, Connecticut. The race covers 28+ miles with 13,685 feet of elevation and is designed to be completed within a 24-hour window. Participants have the flexibility to run, h..

CT Donut Run is a 31.5-mile charity group run in Connecticut, presented as a long, donut-filled endurance experience rather than a traditional race. The route centers in West Hartford and visits several donut stops, including locations in Newington, Berlin, Wallingford, and North Haven, finishing in..

The CFA Trail 5K & Children's Fun Run for Mental Health is a timed trail running event held at Deans Mill Farm in Stonington, Connecticut. Participants can choose between a 5K trail run or a fun run for children aged six and under. The race takes place amid beautiful fall foliage, offering a scenic..

Chasing Ciara's Light 5K/12K Trail Race 2025, held at Great Hollow Lake in Monroe, CT, offers timed 5K and 12K trail races along a scenic course. Sanctioned by USATF and spectator-friendly, it features multiple spots for cheering. A Kids Fun Run provides additional family-friendly activity.The cours..

The Norfolk Land Trust Trail Race Series, including the Haystack Mountain Challenge, is held annually in Norfolk, Connecticut. The 12th edition features three trail race distances: a challenging 5K through Barbour Woods with scenic climbs and wetlands; a 10K that adds a tough loop summiting Haystack..

NipMuck Trail Marathon, in Ashford, CT, features two options: the original NipMuck Trail Marathon (26.4 miles) and a two-person NipMuck Relay. The race uses a 13-mile middle segment of the Nipmuck Trail, running south to Route 44, back to the start, then north to Boston Hollow before finishing at Pe..

Forbidden Forest 30 Hour Ultra Run takes place in Roosevelt Forest, Stratford, Connecticut, October 11-12, 2025. Runners choose a personal challenge on a 2.23-mile loop that weaves through roots, rocky terrain, and a standout hill dubbed "OMG." Competitors can tackle 26.2M, 50K, 50M, 100K, 100 Miles..

Gemstone Sparkle Sprint 5k is a community trail run in Wilton, Connecticut, on Gemstone Farm (144 Huckleberry Hill Rd). The second annual event offers a scenic 5k trail course suitable for all abilities (strollers not allowed on the course) with a festive sparkly theme inviting participants to dress..

Mohawk Mountain Race, held at Mohawk Mountain Ski Area in Cornwall, CT, is a Steep Endurance trail event offering 5K, 10K, Half Marathon, and Marathon distances. The course climbs the mountain on Wildwood and Timber Trails, then traverses Pine, Laurel and Deer Run Trails, before a summit return via..

Tom Centinaro Memorial "Dam" Race is a 3.5-mile trail run/walk hosted by the Wolcott Lions Club in Wolcott, Connecticut. The race unfolds on the scenic, flat Mill Pond Trail at Woodtick Recreation, 201 Nichols Road. This community event benefits local charities and the Tom Centinaro Lions scholarshi..

The Tackle the Trail - Pomfret, CT will take place in Pomfret on Saturday 18 October 2025. You can run between 10 and 42 kilometers.

Bimblers Bluff 50K is an off-road ultramarathon in southern Connecticut, starting at Guilford Lakes School in Guilford. The 50-kilometer course weaves through interconnected woodland preserves, using rolling forest roads and rocky single-track. The route is notable for not requiring repeated loops,..

Cheshire Community YMCA 5K Harvest Trail Run in Cheshire, CT, is a race around Ives Farm. The all-ages event winds through fields and trails on the farm, starting and finishing at the remodeled barn. Proceeds support the YMCA’s Cheshire community programs and the Cheshire Land Trust’s revitalization..

8 Hours at the Farm, held in Brookfield, CT, is a Steep Endurance trail running event on a rolling country course at Gurski Farm/Williams Park. The race features an approximately 4-mile loop with single-track and farm trails, plus options for 8-hour, 4-hour, and 4-mile races. The event emphasizes a..