Trail Running Calendar Connecticut 2025-2026

We have found 30 Trailruns in Connecticut. Check below where and when you can find the races.

Run or ride scenic farm trails at Norbrook Farm Brewery in Colebrook CT, with options from a 5K and 10K to a 4 hour trail challenge, duathlon and competitive mountain bike races. Finishers get custom medals and entrants 21 plus receive a fr..

Take on a scenic 15.7 mile trail run on the Nipmuck Trail in Mansfield CT, following the Fenton River through woods, fields and small bridge crossings. Organized by the Shenipsit Striders, proceeds support local trail stewardship.

August 2026

Join the Stonington Cross Country 5K in Pawcatuck CT on Wednesday August 12 2026 for a free community race that blends one track loop, quiet campus roads and scenic trails. A children's 1/2 mile for ages 10 and under also finishes on the sc..

September 2026

Tackle a scenic 5K through Oswegatchie Hills Nature Preserve, winding past Clark Pond on root and rock strewn trails; hikers welcome. This fourth annual run benefits preserve maintenance and finishes with local pub awards and camaraderie.

Tackle rugged single track, steep climbs and scenic summit views at Macedonia Brook State Park with 12K, 25K and 50K options. The 25K is part of the Blue Blazed Trail Running Series for a true New England trail challenge.

Hit the newly restored Moosup Valley State Park Trail on Sunday, September 27 for scenic 5K, 10K and a kids fun run on all trail terrain. Post race food and gear, leashed dogs welcome, and proceeds support the Rotary Club of Plainfield.

October 2026

Tackle multi day ultras and relays at the Iron Hike Fall series in Cornwall CT, Oct 1 to 4, 2026. Presented by a veteran owned production team, events offer run, hike or walk options across epic mountain terrain.

Take on a 24 hour trail challenge at Mohawk Mountain with a 28 plus mile course and huge elevation gain that rewards grit and strategy. Run, hike, or walk solo or as a relay with veteran owned IronHike Endurance Productions.

Run the Mohawk Mountain Race at Mohawk Ski Area in Connecticut on Oct 12 with distances from 5K to marathon and rolling trails through Mohawk State Forest. Expect big climbs, rugged singletrack, aid stations and a finisher medal.

November 2026

Run 13.1 miles on forest trails at the Storybook Half Marathon in Roosevelt Forest, Stratford CT, completing eight scenic loops of single and doubletrack. Wear a costume, enjoy post race perks, and donate children's books to Books4Everyone.