Trail Running Calendar Connecticut 2026-2027

A 123-mile point-to-point ultramarathon across Connecticut with a 36-hour limit, a mix of trails and roads, multiple mid-course cutoffs, and solo and relay options; finishers receive a buckle, medal, and event t-shirt.

Experience an authentic off road adventure in Guilford with a 10k trail loop featuring technical single track paths and rock scrambles through Westwoods to support local land conservation.

Run a unique quarter marathon distance on the paved trails of West Hartford Reservoir. This chip timed 6.55 mile race features a two loop course with post race treats and age group awards.

Experience a unique all terrain run through Heckscher Farm and wooded trails in Stamford. Runners pass farm animals and historic landmarks on a scenic course while children enjoy a dedicated fun run and educational activities.

Trail loops at Penwood State Park near Bloomfield CT, with a **50K** (three loops) and a **17K** (one loop) on mixed technical single track and double-track terrain; the 50K has a nine hour cutoff.

Experience a technical 5 mile trail run through 250 acres of scenic green space in Killingworth. Navigate rocky terrain and elevation shifts at the Deer Lake Outdoor Center with awards for multiple age categories.

Celebrate National Truffle Day with a chocolate themed trail run at Giddings Park. This event features a three loop 5K for all ages and a kids fun run to support Franklin Elementary School programs.

A technical trail 50K in New Haven on blue-blazed trails with about 6,350 feet of climbing and multiple aid stations. Entry is by waitlist and requires a recent trail 50K qualifier; no crews or pacers are allowed.

Trail races in Lyme, Connecticut offering a 9.2 mile loop and a 3 mile sprint on Mount Archer trails. Chip timed and rain or shine, with 100% of proceeds donated to local emergency services.

A dual-event day featuring a Family Color Run and a 5K Trail Run on May 9, 2026, in Hamden, CT. The first 100 to pre-register get a special giveaway, with water stations available for all participants.

Experience the eighth annual Spring Fling 600 trail races at YMCA Camp Sloper. Choose between a 6 mile race or a 10 hour challenge to complete as many loops as possible on a scenic three mile course.

A loop-based last person standing trail event on Ragged Mountain in Berlin CT with roughly 3.11 mile laps to be completed within an hour; field limited to 55 and proceeds benefit local trail groups and a youth shoe scholarship program.

New for 2026, the Soapstone Mountain Trail Races in Stafford Springs feature an all new half marathon route over Soapstone Mountain and a Jerry Stage 6K sampler, both running on sections of the blue-blazed Shenipsit Trail with proceeds to l..

Run a 3.5-mile trail race in Wolcott, CT. The event supports the local cross country teams. Your entry includes access to the CT Food Truck Battles Festival afterward.

Mine Hill Half Marathon is a 13.1 mile road race in Roxbury, Connecticut, with start and finish at Mine Hill Distillery. The course passes farms, fields and scenic vistas and includes a post-race gathering at the distillery.

Experience a timed 5K trail race through the scenic meadows and woods of Coogan Farm in Mystic. Enjoy post race festivities with animal ambassadors and support local environmental conservation at this inaugural event.

Test your limits at this multi day vertical endurance series at Mohawk Mountain. Choose from seven elevation based challenges ranging from 12 to 84 hours as an individual or part of a flexible relay team.

Experience a timed 5K trail run or walk through the scenic woods and fields of the Van Vleck Farm and Nature Sanctuary. Enjoy live music and food trucks at this annual community event in Woodbury.

Experience a 5K trail and obstacle run featuring 24 challenges across a 400 acre campus in Wallingford. This inclusive community event supports adaptive sports programs through a mix of wooded trails and open fields.

Trail races at Mansfield Hollow State Park: a ~15.7-mile out-and-back on the Nipmuck Trail and a new 5K inside the park, with proceeds supporting Connecticut trail stewardship and organized by the Shenipsit Striders.