Trail Running calendar near East Islip 2026-2027

We have found 87 Trailruns within 80 miles of East Islip. See below where and when you can find the races.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

IronHike Spring 26 at Mohawk Mountain CT in June offers endurance routes from 15 to 152 miles for solo runners, teams and families in a flexible relay format. Enjoy basecamp camping, support stations and finisher gear.

A community 5K trail run, walk and hike in Eisenhower Park Milford on June 7, 2026 supporting the Milford Rotary and the Beth El Center. The course uses a high school cross country route with mostly flat sections and some rolling hills.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

XTERRA Transcend Trail Run at Dickerson Mine Preserve in Randolph NJ offers lakeside, fast singletrack and scenic loops. Pick 5K, 10K or half marathon and chase qualifying spots for the 2027 XTERRA Trail Run World Championships.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

July 2026

Run the Red Wing Trail Challenge in Lagrangeville, NY on July 5 with 15K, 30K, and 60K options on a runnable 15K loop with varied terrain and serious climbing. Aid stations, lap base for 60K, and post race food make this a true trail day.

Pinky's Rock n Rolla is a lively 4 mile trail race through Forest Park's scenic trails celebrating Pinky the Pacer. Finishers get medals, top three men and women earn prizes, dogs welcome, and proceeds benefit Puppy Kitty NYCity.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

August 2026

Ridge Reaper Trail Runs returns Aug 1, 2026 at Ward Pound Ridge Reservation near NYC, offering multiple distances from runnable loops to epic 50 mile challenges. Expect wooded technical trails, ridge views, finisher medals and podium awards..

Interstate 17 is a challenging 17 mile trail run on August 8, 2026 in Closter NJ that traces Hudson River viewpoints. Expect rugged technical singletrack, steep climbs and boulder scrambles across four loops with fully stocked aid stations.

Test your limits on scenic technical trails in Fahnestock State Park with 50K, 25K and 5.5 mile options on August 15, 2026. Enjoy full aid stations, post race food, swag and proceeds supporting park conservation.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

September 2026

Join the XC Summer Series, a friendly weekly cross country 5K on Tuesday nights in Parsippany from April 28 to September 1, 2026. All ages and abilities welcome, walkers included, with chip timing and after race refreshments.

Run for The Hills is a 4th annual trail 5K on September 12, 2026 at Oswegatchie Hills Nature Preserve, winding around Clark Pond. Expect exposed rocks and roots on scenic trails while helping support preserve maintenance.

FallApple invites runners to scenic trail and road courses through South Mountain Reservation in South Orange on September 12, 2026. Choose distances from 5K to 50 miles and enjoy runnable September trails with aid stations.