Trail Running calendar near Islip 2026-2027

We have found 142 Trailruns within 80 miles of Islip. See below where and when you can find the races.

The Corporate Fun Run Pier 84 Manhattan will take place in New York on Monday 14 September 2026. You can run 5 kilometers.

Timed trail events at Lakeside Park in Pawling, NY on a 1.68 mile mixed-surface loop offering 3, 6, 12 (day and night) and 24 hour races. The event is cupless, has an aid station and crew area, finisher medals, and buckles for 100+ miles.

A multi-day trail festival at Wawayanda State Park featuring a full range of distances from a kids 1 mile to a supported 100 mile event, on varied singletrack, boardwalk, and rocky terrain, with camping and community programming.

A trail event in Upper Nyack featuring 50 mile and 27 mile options on repeated 11.5 mile loops with significant elevation, three aid stations, and limited parking and lodging nearby.

Trail races in Ridgefield CT offering a single loop of about 4.25 miles or a double loop of about 8 miles through Hemlock Hills and Pine Mountain. The technical, rocky course starts and ends at the Lake Windwing ballfields.

A 5K trail run at Winding Trails in Farmington on the designated course around Walton Pond, with registration from February 20 to September 20 and a $35 fee; overall and age-group awards plus a prize for the first local finishers.

Experience the technical terrain of Cockaponsett State Forest with 4 and 9 mile trail races. Navigate hills and rocky paths in Chester to support PanCAN and the Blue Blazed Trail Race series.

The Caldwell Cougar Chase 5K and 8K will take place in Woodland Park on Friday 25 September 2026. You can run between 5 and 8 kilometers.

The Front Runners New York Cross Country 5K will take place in Bronx County on Saturday 26 September 2026. You can run 5 kilometers.

October 2026

Experience an ultimate endurance test at Mohawk Mountain by taking on 61 miles and 29,155 feet of elevation gain. Participants have 72 hours to run hike or walk their way to an Everest sized vertical achievement.

A 24 hour trail event at Mohawk Mountain Ski Area in Cornwall Connecticut featuring a Double Kuwohi route of about 28 miles and 13,685 feet of elevation. Participants may run, hike, or walk.

A 30 hour timed trail ultra at Roosevelt Forest on a 2.23 mile loop. Runners complete as many laps as possible with a pavilion aid station and awards based on most miles in 30 hours.

Run through 300 acres of scenic vineyards on a flat trail course in Peconic. Enjoy live music, food trucks, and a post-race glass of wine at this chip-timed autumn event.

A 4 mile trail race through the Irvington Woods on October 4, 2026, with varied terrain and stairs. Start and finish are at the back soccer field of Irvington High/Middle School; registration runs March 15 to September 4 with a $40 fee.

A multi day trail ultrarunning event near Rocky Point, NY on October 9 to 12, 2026. Runners use a 10.48 mile loop with two aid stations and a range of distances from 10 miles to 150 miles.

Third annual trail event on October 10, 2026 in Wilton, CT featuring a 5K and a 1 mile accessible run/walk, with food and entertainment, supporting employment opportunities for people with disabilities.

Trail races at Mohawk Mountain in Cornwall CT offer 5K, 10K, Half Marathon and Marathon routes with measured elevation gains, ski area trail loops, cupless hydration policy, and aid stations for longer distances.

A single-loop trail half marathon through five parks in lower Westchester County, New York, with most of the route on dirt under tree cover. Part of the Trail Mix Series and noted for varied wildlife along hidden trails.

Run or walk through the scenic trails of Blydenburgh Park this autumn. Participants enjoy a 5K trail course complete with seasonal treats and commemorative event swag.

A four mile off road trail run at Spring Meadow Golf Course in Farmingdale, New Jersey on October 11, 2026. Hand held timing, a free drink ticket and a finisher gift are included; shirts and other merchandise cost extra.

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