Trail Running Calendar United States 2026-2027

A four-race August trail series at Lory State Park in Fort Collins featuring 5k, 10k and 12k courses with chip timing, series points and end-of-series awards. Post-race pizza and beverages are provided.

Join this weekly trail running series at the Catamount Outdoor Family Center featuring distances from 5k to 10k. There are special categories for children and water stations available on site for all runners.

A 420 mile crewed point to point ultra from Salt Lake City to West Yellowstone that mixes paved road with about 50 miles of dirt. The run emphasizes extended mental challenge and donates proceeds to the Women’s Center in SLC.

An evening cross-country event at Stonington High School on August 5, 2026, featuring a 5K and a Children's 1/2 Mile for ages 10 and under. The course starts and finishes on the track and includes campus streets, trails, grass, and a bridge..

A six-race trail series at Anne Springs Close Greenway in Fort Mill, SC, held Wednesdays from May 6 to August 5, 2026. Courses are about 3 to 5 miles on single track and gravel, with raffles, place awards, and a points based series champion..

An eight-week chip-timed trail series at Northshore Trail in Flower Mound featuring weekly 5K and 10K races on singletrack, podium awards each week, final series awards, rain dates, and transfer options with no refunds.

A trail race at Fillmore Glen State Park with 3-mile and 8-mile courses through wooded rims, gorge crossings, stairs, and marked water stops. Online registration is required and awards are given by overall and age-group categories.

A 105.7 mile point to point mountain ultramarathon in Bridger Teton National Forest with 24,000 feet of elevation gain and a 48 hour cutoff. The route runs north along the Wyoming Range then west into the Salt River Range and includes GPS f..

A self guided 100 Miler around Lake City, CO that requires visiting 24 proof points and checkpoints in order. The course is unmarked and unsupported and must be completed within 48 hours.

A Backyard Ultra held at Mill Creek Park on the Country Club Plaza where runners complete a 4-lap loop each hour until one runner remains; timed 3, 6, 9, and 12 hour events run alongside with an aid station roughly every mile.

The Anchor Down Ultra presents a series of timed ultra-marathons on the coast of Rhode Island. Runners can choose a 6, 12, or 24 hour challenge within Colt State Park.

This summer cross-country series in Mason features a 2-mile grass race. Compete individually or with a team in high school or open categories. Spectators are welcome free of charge.

A three day guided trail running retreat in Roaring Gap NC with daily guided runs, lodge accommodations, shuttle service, meals, and coaching presentations. Multiple room options and a recommended ability up to about 10 miles on mountain tr..

Experience the final race of the summer at Farmdale Reservoir in Washington Illinois. This five mile trail run features a mix of prairie woods and singletrack paths through a diverse landscape.

A two day untimed trail event at New Belgium Ranger Station in Snowmass Village offering 3.76k, 5k and 10k distances. Completing all three earns the 18.76k Challenge medal; the event includes a free craft brew, medals, music, food, and vend..

A three week night trail series in Wildwood MO featuring three 10K races with increasing climb rates, finisher stickers and post race snacks. The series partners with the Trail Mix Fund and follows a zero waste pledge.

A three-day Duluth event on August 7–9, 2026 combining mountain bike races, cross-country courses, trail running distances, and a hands-on suspension clinic at 8551 Grand Avenue.

An overnight team relay on August 7-8, 2026 at Big Bear Camplands in Bruceton Mills, WV, covering 117 miles across three tree-lined trails. The event features camping at Ragnar Village, live music, showers, food trucks, and glamping options..

Marsh Madness is a free 32 hour ultra at Pointe Mouillee State Game Area near South Rockwood, Michigan, limited to 50 runners. Daytime 8 mile loops and a shorter night loop are self supported with vehicle access every 8 miles.

The Elkhorn Crest 50 offers two rugged ultramarathon distances along Oregon's high mountain ridgeline. With courses averaging over 7,200 feet, runners experience technical terrain and panoramic valley views. This remote, advanced-level even..