Trail Running Calendar United States 2026-2027

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

A mid July trail event on Mulholland ridgeline near Tarzana offering Half Marathon, relay, 10K, and 5K. Expect full sun, rolling climbs, scenic valley and ocean views, and an official shirt and finisher medal.

MSRC XC 5k Classic is a cross country race at Verona Area High School on July 12, 2026. It includes a 5k and a 1.6 mile kids race, team scoring for teams of five runners, and awards across multiple age and team categories.

Trail running at Watkins Glen International on July 12, 2026 with 3 mile and 1.5 mile courses. Entries include a 3 person relay or individual 3 mile race; proceeds support a new first responder wellness center.

A 3 km indoor obstacle course featuring 25 plus obstacles, a three band penalty system, timed Elite and age categories, and a listed Elite prize purse of $4,000. The event also serves as a USA OCR Team qualifier.

An obstacle focused 3k OCR with over 25 obstacles, a three band penalty system and chip timing. Age classes run from youth to masters, Elite offers a cash purse and USA OCR team qualification.

A seven‑week series of Tuesday night fun runs in Redding from July 14 to August 25, 2026, with two distance options each week and a single punch card that covers all seven events.

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..

A weekly trail running series in Williston, Vermont with youth and adult categories, distances including a 2.5 km half lap, 5K and a cubbies race for young children. Events run rain or shine with a specific thunder delay and cancellation po..

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.

Experience the STRS Horseshoe Gulch Grind in Breckenridge with short and long course options. This trail event offers categories for adults and youth starting from the Blair Witch Trailhead.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

Trail races at Snowbird in Little Cottonwood Canyon feature two courses with mixed dirt roads and single-track sections, live bluegrass music, and preferred BBQ parking. Water is available only at the start and finish so runners should carr..

Community road race in Ionia, Michigan on July 16, 2026 with 5 km and 1 mile courses that run through the Free Fair on opening night. The event has awards for top finishers and a participant cap with timed registration fees.

A weekend of mountain trail races at Crystal Mountain near Mount Rainier with a half marathon, downhill 10K, and uphill 5K. Registration includes an all day gondola pass and on site expo, camping, and sustainability policies.

A 100 mile trail race in Easton, Washington, featuring over 23,000 feet of climbing, about 32 miles on the Pacific Crest Trail, and the 2.3 mile Snoqualmie Tunnel. Entry used a lottery and specific volunteer and race qualifier requirements..

A 100 mile mountain ultramarathon in Ouray, Colorado, with about 41,862 feet of elevation gain and fourteen climbs. Participants must complete eight hours of pre race volunteer service or pay a $100 opt out fee; winners face drug testing.

A team-focused 5K cross country race behind the Carterville Community Center on July 17, 2026, with grass, gravel, and paved sections. Teams compete by standard XC scoring and medals and team awards are presented.

An overnight loop endurance event at Lowell Park in Dixon, IL where participants repeat a .411 mile paved loop for 6, 12, or 24 hours. Solo and three person relay options are available and the event is self supported.