Trail Running calendar near Darien 2026-2027

We have found 163 Trailruns within 80 miles of Darien. See below where and when you can find the races.

Experience a technical 5 mile trail run through 250 acres of scenic green space in Killingworth. Navigate rocky terrain and elevation shifts at the Deer Lake Outdoor Center with awards for multiple age categories.

Join the Your Story Matters Falcon 5K in Oak Ridge for a scenic trail run or a vibrant Youth Color Run. Support mental health awareness while enjoying a day of community activities and local giveaways.

The XC Summer Series offers weekly Tuesday evening 5K cross country races in Parsippany's Central Park. The thirteen race series welcomes all ages and abilities, with chip timing and post race refreshments. Participants can register for the..

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.

The A Run to Remember will take place in Red Hook on Saturday 2 May 2026. You can run between 5 and 10 kilometers.

Experience the beauty of the Shawangunk Mountains with a 50 mile ultra, a trail marathon, or a team relay. Enjoy well maintained carriage roads and an 18 hour cutoff in this premier fundraising event for Mohonk Preserve.

Trail races at Bear Mountain State Park on May 2, 2026 include 10K, half marathon and 50K over singletrack with technical sections, rolling climbs, tree cover, rocky and muddy terrain and occasional stream crossings.

Run a flat one mile course in Van Cortlandt Park while wearing your own inflatable costume. This unique Bronx event supports charity and takes place during a local ultramarathon for a high energy atmosphere.

Celebrate National Truffle Day with a chocolate themed trail run at Giddings Park. This event features a three loop 5K for all ages and a kids fun run to support Franklin Elementary School programs.

Experience one of the most technical and elevation dense trail races in the Northeast. Tackle steep climbs and rugged single track through the scenic terrain of Beacon, New York.

A technical out and back 50K on New Haven blue trails with about 6,350 feet of climbing, strict time cutoffs, no crews or pacers, and multiple aid stations including water only stops.

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 weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

This community trail run on Clausland Mountain honors caregivers and supports mental health and sobriety causes. Participants take on a 3.75-mile historic course, receiving a medal in an event focused on gathering, not competition.

A dual-event day featuring a Family Color Run and a 5K Trail Run on May 9, 2026, in Hamden, CT. The first 100 to pre-register get a special giveaway, with water stations available for all participants.

Run for a cause at the Bruynswick Winery Run, a 6k cross-country race benefiting the Ulster County SPCA. Enjoy a scenic course at the foot of the Shawangunk Ridge, with music, drinks, and a chance to meet shelter animals. Free children's da..

Experience the eighth annual Spring Fling 600 trail races at YMCA Camp Sloper. Choose between a 6 mile race or a 10 hour challenge to complete as many loops as possible on a scenic three mile course.

A multi-day timed running festival at the Sussex County Fairgrounds featuring a certified 1.000 mile loop, multiple timed race durations, certified marathon and 50K options, on-course timing display, aid station kitchen, camping and RV faci..

A last person standing loop race on Ragged Mountain where runners repeat a roughly 3.11 mile loop and must finish each lap within one hour; entrants are eliminated if they fail to start or finish a lap, continuing until a single finisher re..

Looped trail races in South Mountain Reservation offering distances from a kids 1-mile to a 50-mile ultra, with aid stations roughly every five miles and proceeds supporting the South Mountain Conservancy.