Trail Running Calendar United States 2026-2027

Muddy Princess Albany is a 5 km obstacle mud run for women held at Harley Rendezvous Classic Inc. Join this non competitive event focused on unity and empowerment while supporting the fight against breast cancer.

Experience a sun soaked summer challenge at Glass City Metropark featuring a half marathon, 10K, 5K, and kids events. Enjoy chip timed results, finisher medals, and free ice cream at the finish line.

Experience a 6 mile trail run through the Mt. Hood National Forest featuring stream crossings and steep terrain. Enjoy group camping and a post race beer garden at the McCubbins Gulch Campground.

A 5K trail run and walk on Tiger Mountain with an out and back route over unpaved roads and a short cross country section. The event is clothing optional and is sponsored by Tiger Mountain Family Nudist Park.

A 5K trail race on July 12, 2026 at Stillwater Prairie Reserve in Covington, OH, as part of the Miami County Park District Trail Run Challenge. Multiple pricing and series options are offered; no dogs are allowed.

A 9 mile trail race at Bradbury Mountain featuring two laps of hilly technical single track, a 3 hour cutoff, and a 180 runner field cap. Part of the Bradbury Mountain Trail Race Series with series prizes and apparel rewards.

A 5k mud and obstacle run at Baja Acres near Birch Run in Millington, Michigan in July 2026, with separate kids and adult waves. Participants must bring a signed waiver and adults a photo ID; spectators pay $10 cash for festival access.

Valley Crest Trails in Tarzana, Los Angeles offers a half marathon, 10K and 5K on Mulholland's exposed ridgeline. Expect rolling climbs, broad views and hot, dry mid July conditions.

A 3k obstacle course race with over 25 obstacles and a three-band penalty system, the Ultimate OCR 3K features Elite and age-group divisions, chip timing, medals and shirts for finishers, and a reported prize purse for Elite winners.

This summer series offers Tuesday evening fun runs in Redding, CA. Each week features a different local park or route with two distance options. A punch card registration includes a special 20th anniversary T-shirt.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

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.

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

Experience a midweek evening trail run through the diverse terrain of Bowdoin Park. This 5 mile race features a mix of grass and rocky trails with awards for top finishers and a food drive for the local pantry.

Trail races at Crystal Mountain near Mount Rainier on July 17 and 18, 2026, include a 5K hill climb, a 10K downhill and a half marathon. Registration includes an all day gondola pass and the weekend offers an expo, camping and race photos.

A 100 mile trail ultramarathon near Easton, WA featuring about 23,000 feet of climbing, roughly 32 miles on the Pacific Crest Trail and a passage through the 2.3 mile Snoqualmie Tunnel. Entry was by lottery and participants must meet trail..

A 100 mile mountain ultramarathon in Ouray, Colorado, featuring about 41,862 feet of elevation gain and 14 climbs. Entrants must complete volunteer service or pay a $100 opt out; top finishers face drug testing for cash prizes.

Experience a high school style cross country meet in Carterville featuring a 5k course on grass and gravel. Join as a team or run solo in this evening event with awards for top individuals and teams.

Experience the rugged beauty of the Illinois River Bluff at Camp Wokanda. This summer trail event features distances from a half marathon to 100 miles on technical, wooded single track with significant elevation.

Experience a high altitude 100 mile loop through the Colorado Rockies featuring 23,300 feet of gain. Run across alpine passes and historic ghost towns on the Continental Divide and Colorado Trails within a 37 hour limit.