Trail Running calendar near Smithtown 2026-2027

We have found 132 Trailruns within 80 miles of Smithtown. See below where and when you can find the races.

A loop-based trail event in Upper Nyack with 50 mile and 27 mile options, significant elevation, three aid stations, and a 14 hour cutoff. Parking and nearby overnight accommodations are coordinated with a local retreat center.

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.

A trail running event in Gardiner, NY offering a 5 km run, an optional 10 km two-lap route and a 200 yard kids run, with pre registration T shirt incentives and a sneaker recycling program.

A scored 5K cross country race at Van Cortlandt Park in the Bronx on September 27, 2026, part of NYRR's fall series; includes free youth races for ages 2 to 18 and awards for top finishers across divisions.

October 2026

Experience a massive endurance test at Mohawk Mountain Ski Area. This ultra trail event features a 152 mile course with over 72,000 feet of elevation gain to be completed within 84 hours.

A 15 mile trail event at Mohawk Mountain Ski Area in Cornwall, Connecticut on October 3–4, 2026, offering 7,140' of elevation gain and a 12 hour time limit. Participants may run, hike, or walk; the event is produced by a veteran owned compa..

A 30 hour trail ultra at Roosevelt Forest with a 2.23 mile loop, marked course, multiple distance options, and a 100 mile finisher buckle. Aid is centered at the pavilion and one registered pacer is allowed per runner.

A six-week adult cross country series in Monmouth County featuring six 5K races at local parks, with team and individual scoring and age group awards. Registration options include a full-series fee or per-race entry, with event-day registra..

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 four mile trail race through Irvington Woods on October 4, 2026, with varied terrain including climbs and stairs; start and finish at Irvington High School. Registration runs March 15 to September 4 with a $40 fee.

The Haystack Mountain Challenge on October 4, 2026, features a 5K, 10K and a half marathon across Barbour Woods and Haystack Mountain, with steep climbs, private trail sections, a cupless policy, water stations and on site refreshments.

On October 4, 2026 the Highlander Heavy Half in Cold Spring, NY is a 13.7 mile trail race with roughly 4,000 ft of elevation gain through the Hudson Highlands. A portion of proceeds supports the NYNJTC.

Run a scored 5K race through the scenic trails and varied terrain of Van Cortlandt Park. This Bronx event features divisions for all adults and free youth races for ages 2 to 18.

Runners climb the Empire State Building's 86 flights and 1,576 stairs to the observatory in this New York tower race on 10/06/2026. Multiple entry categories are offered with different registration windows and fees.

A multi-distance trail race in Rocky Point, NY held October 9–12, 2026, using a 10.48 mile loop for all distances. The event features two aid stations with Hylē Hydration, course flagging, night race options, and crew and pacer rules.

A family friendly trail event on October 10, 2026 in Wilton CT offering a 5K and a short accessible run or walk, with participant perks and support for employment initiatives for people with disabilities.

Experience a trail race at Mohawk Mountain Ski Resort featuring distances from 5k to a full marathon. Run through fall foliage on a course that includes steep ski slopes and the scenic Mohawk State Forest.

A single-loop trail half marathon through five parks in lower Westchester County, New Rochelle. Most of the course is on dirt and wooded trails and passes through areas with visible wildlife.

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