Trail Running Calendar Connecticut 2026-2027

The Frozen Heart 900 will take place in Rockfall on Saturday 7 February 2026. You can run 50 miles.

Tackle roughly 16 miles on the scenic, technical Nipmuck Trail in Union, Connecticut, running an out and back through Yale Myers Forest to Boston Hollow. Field capped at 100 with limited aid and no race day registration; proceeds support lo..

Run Sleeping Giant State Park on scenic, challenging trails with 25K and 50K options. Tackle runnable miles, rocky singletrack and a steep scramble to sweeping views, while supporting the park through registration proceeds.

CT123 is a point to point 123 mile ultramarathon across Connecticut, blending trails and backroads for a scenic, challenging adventure. Choose solo 200K or 100K or team relay options, and earn a buckle or medal plus a 2025 race tee.

Run a scenic quarter marathon at West Hartford Reservoir on April 11, 2026, as the Hartford Track Club hosts a small, timed field limited to 150 runners. Enjoy chip timing, post race treats and a friendly, looped trail course.

Run a scenic all terrain 5K through Stamford Museum and Nature Center, looping Bendel Pond and passing farm animals. Bring kids for a fun run with Petunia the Scottish Highland cow and support the museum.

Take on the Traprock 50 at Penwood State Park in Bloomfield, CT on April 18, 2026. Choose a rugged 50K of three rolling, rocky loops or a single 17K loop along technical single track and scenic forest roads. Bring your own cup.

A women's only trail race at Lake Mohegan in Fairfield, CT on April 25, 2026 offering 5K, 10K and a four hour looped option. Organized by Steep Endurance with cupless aid practices, finisher medals and podium awards.

Celebrate the 52nd Jack Bristol Lake Waramaug Ultra on April 26 in Kent Connecticut with 100K, 50 Miler, and 50K options on scenic rolling loops around the lake. Fast paved roads, four aid stations, and a friendly finish at Lake Waramaug St..

Blue 2 Blue Challenge is a tough 50K on New Haven's blue blazed trails, featuring rocky technical terrain and big climbs linking West Rock and Quinnipiac. Entry is by vetted waitlist and the race enforces strict cutoffs so come prepared.

Take on scenic singletrack at the Mount Archer Trail Race in Lyme CT on May 3, 2026 with a tough 9.2 mile loop or a fun 3 mile sprint. Chip timed results, post race food and drinks, and proceeds support the Lyme Fire Department and Lyme Amb..

Explore Soapstone Mountain trails in Stafford Springs with a new half marathon that climbs past the fire tower or a fun 6K sampler open to walkers. Proceeds benefit Connecticut trail stewardship. The event is cupless so bring your own water..

A *3.5 mile* trail run/walk at Woodtick Recreation Area in Wolcott, CT on May 17, 2026. Proceeds support the Wolcott Cross Country Teams and participants receive a free entry to the CT Food Truck Battles Festival.

Join the Mine Hill Half Marathon on May 24, 2026, starting and finishing at Mine Hill Distillery in Roxbury, CT. Tackle a scenic hilly road course and celebrate afterward with food, live music and distillery samples.

A multi day endurance series at Mohawk Mountain in Connecticut offering solo and team trail events from 15 to 152+ miles with timed formats up to 84 hours. Tenting, support stations, and personalized bibs and medals are provided.

A community 5K trail run, walk and hike in Eisenhower Park Milford on June 7, 2026 supporting the Milford Rotary and the Beth El Center. The course uses a high school cross country route with mostly flat sections and some rolling hills.

The Norbrook Farm Brewery Trail Festival will take place in Colebrook on Saturday 13 June 2026. You can run between 5 and 4 hours.

Trail action at Mansfield Hollow State Park with a scenic yet challenging 15 Miler along the Nipmuck Trail and a new technical 5K inside the park. Expect river views, woods, bridges and climbs while supporting Connecticut trail stewardship..

Early morning trail run in Gay City State Park offering 3, 5 and 8 mile races. The 8 mile is part of the Blue Blazed and USATF CT MUT series and includes teams of three competing for prize money.

A 5.5 mile trail race at Soapstone Mountain with six repeated climbs totaling about 1500 feet of ascent. The course follows multiple trails around the mountain, finishes at the base of the tower after Killer Hill, and includes technical ter..