Trail Running calendar near Leyden 2025-2026

We have found 42 Trailruns within 80 miles of Leyden. See below where and when you can find the races.

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.

Join the 27th Annual Novemberfest Race, a four mile community run through scenic Mine Falls Park to benefit the Nashua Children’s Home. Stay for a lively post race party and raffle at Martha's Exchange with local prizes and good company.

Tackle a rolling 8K through the West Hartford Reservoir at the Hartford Track Club 8K Cross Country Challenge on Nov 23, 2025. Enjoy trails, gravel and scenic views as runners vie for age group honors in a fast, fun fall race.

Celebrate Thanksgiving in Springfield VT at Toonerville Trail Turkey Trot, a flat, scenic 5K along the Black River with a virtual option to support local food banks and school teams. Finishers get socks and cider donuts.

Join a scenic road and rail trail run with prizes for top finishers. Route may change for weather and the event will be canceled if it snows. Entry is donation based; proceeds benefit a local dog rescue and community theater.

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.

Run or walk the Sunday after Thanksgiving at Chesterfield Gorge with a scenic trail 5k, family walk and kids race along the Westfield River. Finishers earn a baked cookie medal and can enjoy a potluck, with proceeds to Hilltown Land Trust.

December 2025

Join Trail Animals Running Club Winter Classic at Middlesex Fells for scenic but rugged Skyline Trail loops with 8, 32, and 40 mile options. Expect rocky climbs, limited aid, cupless racing, and a friendly sold out vibe.

Seth's Fat Ass 50K at Forest Park in Springfield is a friendly challenge of up to ten 5K loops. You have seven hours to run as many laps as you like, grab event schwag and a t shirt, and enjoy the social ultrarunning vibe.

February 2026

TARCtic Frozen Yeti brings winter trail racing to Hale Education in Westwood, MA on Feb 7 and 8, 2026. Choose a rugged 30 hour endurance challenge or a scenic 15 mile loop and tackle snowy trails under starlight.

March 2026

Experience scenic wooded loops and pondside views at TARC To Hale and Back in Westwood MA, choose a 6 Hour challenge or a 3.5 Mile loop. The trail mixes singletrack and fire road, features one aid station and is cupless so bring your own bo..

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.

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.

The Merrimack River Trail Race is a USATF-sanctioned 10-mile out-and-back trail run held in Andover, Massachusetts, starting from the DoubleTree by Hilton Hotel parking lot. The course features water stations at miles 2, 4, and 8, with a mi..

Runamuck 50K is a rugged trail ultramarathon around South Pomfret, Vermont, weaving hilly dirt roads and scenic backcountry. Expect changeable weather and a true test of endurance on this challenging 50K course.

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.

Challenge yourself at Penwood State Park in Bloomfield on April 18, 2026 with 17K and 50K loop options. Expect rugged, rocky single track, a notable power line climb, and classic grassroots trail race vibes.

The TARC Spring Classic will take place in Weston on Saturday 25 April 2026. You can run between 10 and 50 kilometers.

May 2026

Run the scenic Dandelion Dash 5K on The Hartsbrook School trails or enjoy the family friendly Mushroom Mile in Hadley, MA. Support school programs in sustainable agriculture and beekeeping or run virtually from anywhere.

TARC Wapack and Back is a scenic, rugged trail race in May on the Wapack Trail between Massachusetts and New Hampshire, offering 21.5, 43 and 50 mile options. Expect technical terrain, big climbs, limited aid, and a tight knit trail communi..