Trail Running calendar near Guilford 2026-2027

Join the Frozen Heart 900, a free grassroots winter loop in Rockfall CT where runners take on a 15 hour challenge around a 2.2 mile trail loop. Self supported format with a heated meeting room for warming, so bring headlamps and carpool.

Join the Squatchy Onesiefest 5K on Feb 14 in Mahwah NJ for a playful, flat 5K around Scarlet Oak Pond or a shorter fun run. Costume lovers earn awards for top finishers in onesies, with on trail aid and a cozy race village.

Join the Never Stop Running Foundation 4 Leaf Clover 5K at Bethpage State Park, a scenic trail run starting on a grassy polo field. Family friendly with a kiddie fun run, virtual 5K and post race refreshments supporting the foundation.

The Ospreys Dominion Wine Run 5K will take place in North Fork on Saturday 21 March 2026. You can run 5 kilometers.

Tackle roughly 16 miles on the scenic, technical Nipmuck Trail in Union, Connecticut, running an out and back through Yale Myers Forest to Boston Hollow. Field capped at 100 with limited aid and no race day registration; proceeds support lo..

Run Sleeping Giant State Park on scenic, challenging trails with 25K and 50K options. Tackle runnable miles, rocky singletrack and a steep scramble to sweeping views, while supporting the park through registration proceeds.

Tackle a rugged, technical 10k through Van Cortlandt Park in the Bronx on March 29, 2026, and grab a commemorative souvenir. A portion of entry fees supports the Van Cortlandt Park Alliance for trail upkeep and youth programs.

Run rugged, technical trails at Bear Mountain with 10K or half marathon options and stunning Hudson Valley and NYC skyline views. Proceeds support the New York New Jersey Trail Conference; race day is Apr 4.

CT123 is a point to point 123 mile ultramarathon across Connecticut, blending trails and backroads for a scenic, challenging adventure. Choose solo 200K or 100K or team relay options, and earn a buckle or medal plus a 2025 race tee.

Run the Bunny Trail 5K at Bethpage State Park for a scenic start on the polo field and winding soft trails with a cross country feel. Family friendly with free kiddie run and virtual option, benefiting the Never Stop Running Foundation.

Run a scenic quarter marathon at West Hartford Reservoir on April 11, 2026, as the Hartford Track Club hosts a small, timed field limited to 150 runners. Enjoy chip timing, post race treats and a friendly, looped trail course.

Join Last Chance's Run for the Rescue, a scenic 5K at Blydenburgh Park on April 11 with virtual entry through Apr 19. Bring leashed dogs, enjoy trails and refreshments, and support Last Chance Animal Rescue.

Run or walk the John Jay Community Trail Race in Cross River through scenic wooded trails and rolling hills, with 5k, 4k walk and a Kids Jay Dash on the track. A family friendly community event that finishes on the John Jay Contest Field.

Run a scenic all terrain 5K through Stamford Museum and Nature Center, looping Bendel Pond and passing farm animals. Bring kids for a fun run with Petunia the Scottish Highland cow and support the museum.

Shore2Shore in East Islip on April 18, 2026 offers 50K and 25K trail races along the Long Island Greenbelt Trail, finishing at Heckscher State Park. Enjoy scenic coastline, full aid stations, and a two hour volunteer or donation option.

Take on the Traprock 50 at Penwood State Park in Bloomfield, CT on April 18, 2026. Choose a rugged 50K of three rolling, rocky loops or a single 17K loop along technical single track and scenic forest roads. Bring your own cup.

Join the final Conquer The Trail Race on April 18 in Dobbs Ferry at Mercy University for a scenic 7.5k on the Croton Aqueduct Trail. Celebrate Mercy's 75th, snag a commemorative shirt, and support the Mav Market.

Women focused trail run at Lake Mohegan offering a runnable 5K loop, a 10K two lap option and a 4 hour loop challenge. Expect scenic trails, medals for finishers and post race snacks; nonbinary runners are welcome.

Celebrate the 52nd Jack Bristol Lake Waramaug Ultra on April 26 in Kent Connecticut with 100K, 50 Miler, and 50K options on scenic rolling loops around the lake. Fast paved roads, four aid stations, and a friendly finish at Lake Waramaug St..

Enjoy a spring 10k trail race in Cross River, NY on April 26, 2026, winding through scenic park trails. Entry is by lottery with registration opening January 2, 2026, perfect for trail runners seeking a well organized challenge.