Trail Running calendar near Billings 2026-2027

We have found 133 Trailruns within 80 miles of Billings. See below where and when you can find the races.

A *5K* trail run/walk through Blydenburgh County Park on April 11, 2026 with in-person and virtual options, on-site refreshments and hydration, dog-friendly rules, and proceeds supporting Last Chance Animal Rescue.

A USATF certified point to point half marathon in Albany County on April 11, 2026, mostly on paved rail trail with a net downhill and a 500 foot elevation drop to a Hudson River finish. The event offers live tracking, bus to the start, post..

A community trail event in Cross River, NY on April 12, 2026 featuring a 5k trail race, a 4k walk that skips part of the hill loop, and a 200 meter kids dash on the track.

A spring event at the Stamford Museum and Nature Center on April 12 2026 featuring a scenic 5K through farm and woodland and a 0.3 mile kids run past farm animals. Proceeds support the museum and nature center.

A community trail event in Irvington on April 12, 2026 featuring a 5k trail run and a 0.6 mile kids 1K for ages 10 and under, with a portion of proceeds supporting the Irvington Bulldog Booster Club.

A point to point trail event on the Long Island Greenbelt Trail with 50K and 25K options, fully stocked aid stations, required two hours of volunteer trail work, and a finish at Heckscher State Park with a shirt and finisher award.

Trail races at Penwood State Park offer a 50K (three loops) and a 17K (one loop) over primarily single-track and double-track terrain, with a nine hour cutoff for the 50K. The event is cupless and organized by the CT Trailmixers.

The final edition of the Conquer The Trail Race is a 7.5k flat out-and-back run on the Croton Aqueduct Trail. It celebrates Mercy University's 75th anniversary, with proceeds supporting student food security. The event takes place at Mercy..

Join the Brooklyn Cider House Spiked Apple 5K in New Paltz on April 19, 2026 for a chip timed run or walk. Enjoy a tee, cider pour, donut and a finisher medal that doubles as a bottle opener for a festive post race celebration.

Two trail races on April 19, 2026 at Brookhaven State Park in Wading River: a 15K and a 4 mile course through single track, fire trails, sandy sections and woodlands, run as a cupless event with age group awards and charity support.

A mountain trail event on the Shawangunk Ridge in Ellenville, NY on April 25, 2026 offering a technical **25K** (near 17 miles) and a **10 Miler**. The race is sold out but charity bibs are available with a $500 donation to Run Wild, Inc.

Trail running at Wawayanda State Park across a 26 plus mile loop with four distance choices and varied terrain including rhododendron tunnels, marsh bridges, gravel roads and single track. Aid stations, camping and finisher awards are provi..

A women’s-only trail running event at Lake Mohegan in Fairfield offering a runnable 5K loop, 10K, and a 4 hour looped challenge; the race includes finisher medals, top-3 awards, post-race refreshments, and a cupless sustainability policy.

A 15K trail race at Grafton Lakes State Park covering about 9.3 miles with 900 ft of elevation gain. The technical yet runnable spring course can be muddy and is described as accessible for new trail runners.

A two-race event at Birchwood Lake in Mountain Lakes, New Jersey on April 25, 2026 featuring a scenic mostly flat loop through woods and around lakes. Events are open to men and women age 30 and over.

A USATF-sanctioned ultramarathon around scenic Lake Waramaug in Kent, Connecticut on April 26, 2026, offering 100K, 50 mile and 50K options on paved, rolling loops with four aid stations and finisher awards.

Leatherman's Loop is a 10k trail race at Ward Pound Ridge Reservation in Cross River, NY on April 26, 2026. Entry is by lottery and the race is USATF sanctioned; registration includes the park entry fee.

Join the XC Summer Series, a friendly Tuesday night 5K in Parsippany with chip timing and after race refreshments. Open to all ages and abilities, walkers welcome and affordable single night or full series pricing.

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.

A Run to Remember in Red Hook NY features 5K and 10K trail races plus a 5K walk on May 2, 2026. Courses run through meadows, forest, orchards and berry patches and cash prizes are awarded.