Trail Running calendar near Guilford 2026-2027

We have found 93 Trailruns within 80 miles of Guilford. See below where and when you can find the races.

Two trail races on April 19, 2026 at Brookhaven State Park in Wading River: a 15K and a 4 mile course through single track, fire trails, sandy sections and woodlands, run as a cupless event with age group awards and charity support.

A women’s-only trail running event at Lake Mohegan in Fairfield offering a runnable 5K loop, 10K, and a 4 hour looped challenge; the race includes finisher medals, top-3 awards, post-race refreshments, and a cupless sustainability policy.

Leatherman's Loop is a 10k trail race at Ward Pound Ridge Reservation in Cross River, NY on April 26, 2026. Entry is by lottery and the race is USATF sanctioned; registration includes the park entry fee.

May 2026

An ultramarathon in Van Cortlandt Park featuring an initial flat lap plus ten cross country loops, stocked aid stations, drop bag access, and finisher awards including a medal, singlet, meal and post race beer.

A 12 mile out and back trail race on the Holyoke Ridge near Amherst MA featuring technical singletrack, over 3,500 feet of ascent, a 500 runner cap and a waitlist when full.

A Run to Remember in Red Hook NY features 5K and 10K trail races plus a 5K walk on May 2, 2026. Courses run through meadows, forest, orchards and berry patches and cash prizes are awarded.

Trail races at Bear Mountain State Park near New York City on May 2, 2026, featuring 10K, half marathon and 50K options across singletrack with rocky, rooted, and forested sections offering occasional views.

A technical trail event near Beacon, NY on May 3, 2026 offering half and full courses with steep exposed climbs, significant elevation gain, aid stations, limited on-site camping, and a participant shirt and finisher item.

The The Blue 2 Blue Challenge will take place in Woodbridge on Sunday 3 May 2026. You can run 50 kilometers.

A trail event at The Hartsbrook School in Hadley featuring a 5K Dandelion Dash and a 1 mile Mushroom Mile. Proceeds support school land stewardship and a virtual 5K option is offered.

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 community trail event on May 9, 2026 in Orangeburg NY offering looped courses of 3.75, 7.5, and 11.25 miles to support Rex Runs Kindly and NAMI of Rockland, with aid stations and participant T shirt and medal.

A spring trail event at Muscoot Farm featuring a *5 mile* race plus two kids races by age group; participants receive Farm Bucks for the farmers market and shirts are available by pre-order. Service dogs only; no other dogs permitted.

A new Soapstone Mountain Half Marathon debuts in 2026 alongside the Jerry Stage 6K. Both are trail races in Shenipsit Forest starting at Reddington Rock Riding Club, organized by the Shenipsit Striders with proceeds to trail stewardship gro..

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.

A community 5K trail run at Blydenburgh County Park on May 23, 2026, with in-person and virtual options, a free Kiddie Dash, on-site hydration and refreshments, parking guidance, and proceeds supporting the Never Stop Running Foundation.

A road half marathon in Roxbury, Connecticut on May 24, 2026 that features mixed pavement and dirt sections, notable climbs including a 250 foot gain near the halfway point, and a post race celebration at Mine Hill Distillery.

A 4 mile out-and-back road and trail race in Forest Park, Queens on May 24, 2026, starting and finishing at Victory Field Track; entries capped at 500, guaranteed technical shirts for pre-registrants, custom medals for finishers and cash aw..

June 2026

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 point-to-point ultramarathon on the New England Trail offering 112-mile and 50-mile options to Guilford. Entrants must make a donation to the Connecticut Forest and Parks Association and arrange their own crew and navigation.