Trail Running Calendar United States 2025-2026

Tackle a steep 1.6 mile ascent to the summit of Mount Sentinel in this scenic trail race on the University of Montana campus. Limited to 250 runners, the event features a kids M Trail climb and postrace Big Dipper ice cream treats.

Run scenic trails in Yellow River State Forest on May 8 and 9, 2026 with 5K, 10K and half marathon options. Family friendly Friday 5K allows leashed dogs and Dirty Double entrants get a hand crafted race mug.

Hellbender 100 is a 100 mile trail race up Mt Mitchell in the Black Mountains with about 48,000 feet of climbing and pacers allowed. Organized by Run828, it qualifies runners for Hardrock and Western States and supports local nonprofits.

Run the Flagstaff Crest, a 39 mile point to point trail from Fort Tuthill to downtown Flagstaff through ponderosa pine and high country. Enjoy miles of single track, forest roads and city trails, big climbs, cupless aid and required GPS nav..

Tiger Claw on Tiger Mountain in Issaquah WA on May 8 and 9, 2026 delivers steep, technical trails and a rugged 50k of about 31 miles with massive elevation gain. Choose the vertical Ascent, a team relay or the double loop for a true trail t..

Run singletrack through Pere Marquette Forest at the Traverse City Trail Running Festival, a weekend of distances from 5K to 100K with relays and family friendly options. Finish at Timber Ridge Resort and enjoy postrace food and local beer.

Run riverside at Muddy Crudd's Ultra Trail Party on May 9, 2026 at Shawmut Airport in Valley, AL along the Chattahoochee River. Options include 12 and 6 hour timed events, a 3.1 mile trail 5K, and the playful Ice Cream Mile where you eat fo..

The Tick on May 9, 2026 is a rugged 50 miles plus 7.41 mandatory bonus miles point to point through Ocala National Forest on the Florida National Scenic Trail. Crew support is required as you tackle singletrack, wetlands and wild scenery.

Push your limits at the Valley Falls 6 and 12 Hour, a timed challenge on a scenic loop through rugged trails and waterfalls. Enjoy stocked aid stations, local artist shirts, and support for Innocent Lives Foundation.

Join the Valkyrie Trail Race on May 9, 2026 at Cheyenne Mountain State Park for a women focused day of stunning singletrack, rocky descents and springtime views. Distances from short runs up to 50K ultramarathon welcome all levels.

Run from Stinson Beach into the towering redwoods of Muir Woods on a scenic, rugged trail with ladders, stairs and scrambling sections for an adventurous challenge. Limited to 300 runners, this intimate race on May 9 2026 offers marathon, h..

Run scenic trails at Teason's Woods in Palos Hills on May 9, 2026 with marathon or 10 Mile options over rolling terrain and shared two way trails. Enjoy event apparel, a wooden sunflower medal for finishers, plus post race chili and beer.

TARC Wapack and Back is a scenic, rugged trail race in May on the Wapack Trail between Massachusetts and New Hampshire, offering 21.5, 43 and 50 mile options. Expect technical terrain, big climbs, limited aid, and a tight knit trail communi..

Run or walk the Waves & Whales 5K on the Mendocino Coast in Point Arena, following bluffside trails through pine and cypress forest. Proceeds benefit student coastal stewardship and entrants get an organic cotton tee and handmade medallions..

Join Race4Warriors in Lewes on May 9, 2026 for 5K, 10K or half marathon courses through Cape Henlopen, Fort Miles and Rehoboth Beach. Support Wounded Warriors and homeless vets while enjoying exhibits, live music and finisher medals.

The Jemez Mountain Trail Runs is an annual trail running event held in May in the Jemez Mountains, New Mexico. It features three race distances: 50 miles, 50 kilometers, and 15 miles, catering to a range of trail runners. The event is known..

Tackle rolling hills and scenic single track through hardwood forest at Camp Caraway in the Northern Uwharrie Mountains. Choose 5K or 10K, enjoy chip timing, medals and trophies, and help fund camper scholarships.

Run the Dirty German Endurance Fest in Philadelphia on May 9, a figure 8 ultra through shaded Pennypack Park with 25K, 50K and 50 mile options. Enjoy creekside trails, live accordion music at finish plus German prizes and finisher swag.

Run the Southern Paws Animal Rescue 5k at Boone Hall Plantation in Mount Pleasant to support abused and neglected animals. Pay entry or bring a bag of pet food to get $10 off and make a difference.

Run the scenic cross country trails at Crystal Lake Outdoor Center's 10th Annual Trail Race on May 9. Choose a 5k or 25k and help support trail maintenance and center operations as proceeds benefit the nonprofit.