Trail Running Calendar Connecticut 2025-2026

We have found 32 Trailruns in Connecticut. Check below where and when you can find the races.

Join the Centerville Bank Thompson Turkey Trot on November 9 for a family friendly cross country 5K, 3K Wobble walk and kids fun run with costumes encouraged. Proceeds benefit Thompson trails, parks and the local food pantry.

Join the Dave Driscoll 19th Annual Age Before Beauty 5K cross country at White Memorial in Litchfield on Sunday, November 9, 2025. Enjoy a scenic all cross country course as the first race of the day ahead of the Junior Olympics.

Run scenic, hilly single track at the Tarrywile Half Marathon on November 16, 2025 in Danbury CT with 10K, half marathon and marathon options. Rugged terrain, aid stations and finisher medals make for a rewarding trail day.

Take on the Fall Fling 400 at YMCA Camp Sloper in Southington CT on Nov 22, 2025. Choose a unique 400 minute loop endurance challenge or a 4 mile two lap trail race through wooded single track and rolling hills.

Hit the Brooksvale Trails Turkey Trot at Brooksvale Park in Hamden for scenic 5K and 10K trail runs that are friendly to runners and walkers. Enjoy swag and maple bacon donuts while supporting park trails and a local food drive.

Tackle an accurately measured 8K cross country course through the MDC Reservoir Complex in West Hartford on Sunday, November 23, 2025. Rolling gravel and trail terrain with a touch of pavement make this a scenic challenge for all paces.

Join the Roxbury Thanksgiving Charity Race, a scenic 5K in Roxbury, Connecticut, starting and finishing at Everett B. Hurlburt Community Park. Run or walk to celebrate the season and support local causes.

Run or walk this Thanksgiving on a scenic 5k trail around Scoville Reservoir in Wolcott with medals, swag and timed results. Enjoy pre race stretching and free post race yoga, family and dog friendly, with proceeds supporting EndoFound.

Join the Darien Depot Overstuffed Turkey Trot at Darien High School on Nov 28 for 5K, 1 mile and kids races on scenic cross country trails, with medals for all finishers. Proceeds support The Depot youth center and post race music and food.

December 2025

Join the Tower Tag Challenge at Sleeping Giant State Park for a scenic timed loop to the Observation Tower, with 4 hour and 8 hour options. Run repeated 3.3 mile laps on a smooth carriage road with aid station support and finisher medals.

Run the Frosty Forest 5K in Stratford through Roosevelt Forest on an off road trail welcoming runners, joggers and walkers. Holiday costumes encouraged, every finisher gets a commemorative item and proceeds support local charities.

Join the 8th Annual Taco Trials in Rocky Hill: eat a taco then run a 1 mile loop, repeating it ten times for a fun, quirky challenge. Medals for finishers and proceeds benefit the Connecticut Forest and Park Association.

March 2026

Run a scenic 16 miles on the Nipmuck Trail in Union Connecticut, out and back to the Boston Hollow turnaround through Yale Myers Forest. Field is capped at 100 and proceeds benefit local trail groups.

Take on rugged singletrack, a steep headwall scramble and 3,000 feet of climbing at Sleeping Giant Trail Runs, with 25K and 50K options. At Sleeping Giant State Park in Hamden CT on March 29, proceeds benefit the park and finishers get meda..

April 2026

Run Across CT 123 is a point to point ultramarathon across about 123 miles of Connecticut, weaving trails and backroads through 25 towns. Choose 100K or 200K solo or relay and chase a coveted belt buckle for 200K finishers.

Run a scenic 6.55 mile quarter marathon through West Hartford Reservoir 4 as two loops around the park. Limited to 150 runners, the event features chip timing, post race treats and awards in five year age groups.

Take on the rugged Traprock trail at Penwood State Park with a single 17K loop or three loops for the 50K for a true trail challenge. Expect rocky, technical single track, rolling terrain and great forest views.

Celebrate trail running at the Lake Mohegan Women’s Trail Race, welcoming women and non binary runners to scenic loops in Fairfield, CT. Pick a 5K, 10K or a 4 hour loop challenge and finish with medals, podium prizes and great community vib..

Run the 52nd Jack Bristol Lake Waramaug Ultra in Kent CT on April 26 2026 for scenic, mostly flat loops around the lake with 100K, 50 Miler and 50K options. Expect stocked aid stations, finisher swag and lakeside views to inspire.

May 2026

Blue 2 Blue Challenge is a demanding 50K on May 3, 2026 in New Haven, Connecticut, across rugged blue blazed trails with steep, technical climbs. Entry is by waitlist and requires a recent qualifying trail 50K, so come prepared.