Trail Running Calendar United States 2025-2026

The Donut Dash 10K in Moscow, Idaho, is a fun and unique running event hosted by Palouse Road Runners as part of their Summer 10k Series. Participants, either solo or in teams of 2, 3, or 6, complete six one-mile loops starting and finishing at the Palouse-Clearwater Environmental Institute (PCEI)...

The Magnolia Hill Trail Run is part of the XTERRA Magnolia Hill event held at Magnolia Hill Ranch in Navasota, Texas. This private ranch features a scenic trail system through pine woods and alongside a sparkling blue lake, offering a unique off-road experience. The event includes multiple race dist..

The Dirty Burg is a trail running event held at Cannonsburg Ski Area in Belmont, Michigan. It features a challenging 10K loop with approximately 5.5 miles of scenic rolling single track and a 0.7-mile ascent and descent of the ski hill. Distances offered include 5K, 10K, 25K, and 50K, with longer ra..

The Dirty Spokes Sawnee Mountain Trail Run is an annual event held at Sawnee Mountain Preserve in Cumming, Georgia. Featuring two distances, 4.0 miles and 3.1 miles, the race offers a challenging course with a mix of single and double track trails, rolling and steep hills, technical rocky sections,..

Ultra Sweaty Santa is an annual endurance running event held in Devils Elbow, Missouri, celebrating Christmas in July with a unique 6-hour race. Participants can run for 30 minutes, 3 hours, or the full 6 hours on a shaded 6-mile crushed gravel loop along the Big Piney River near Old Route 66, with..

The Muir Woods Trail Run, held at Mt. Tamalpais State Park near Stinson Beach, California, offers three distances: 10K, half marathon, and 30K. This challenging trail race features steep climbs, including a 2,000-foot ascent over two miles on Willow Camp Hill, scenic ridge-line views of Stinson Beac..

The Great Hill Ultra is a challenging 62-mile trail race set in the scenic Finger Lakes region near Middlesex, NY. The course features diverse terrain including hills, valleys, gully rim trails, swamplands, and hilltops, offering exceptional views throughout. Runners experience a unique route that i..

Elder Creek Night Runs is a unique nighttime trail running event held near Anza, California, on land graciously provided by the Cahuilla Band of Indians. The race features distances of 9 miles, 13 miles, 30K, and 50K, all run on a 4.6-mile loop combining single-track trails and wide dirt roads throu..

The Spaulding Woods 50K is a challenging trail race held in Northfield, New Hampshire, featuring a technical 5.6-mile loop with rocks, roots, and footbridges. Runners complete six laps totaling approximately 34 miles with 4,400 feet of elevation gain, primarily on singletrack trails. The event suppo..

Stunner Night Runs is a nighttime trail running event held at Usery Mountain Regional Park in Mesa, Arizona. The race features four distances: 50K, 25K, 12K, and 6K, all on a flat and fast course that includes the Chain Fruit, Lost Sheep, Channel, and Blevins Trails. Participants run through scenic..

The Whiteface Mountain Races, held at Whiteface Mountain Ski Resort in Wilmington, NY, are among the most challenging mountain running events in the U.S., featuring extreme vertical gain and loss per mile. The main race, the Marshak Mountain Race, offers a 10K loop with about 3,800 feet of elevation..

Noche Trail Runs is a challenging night trail running event held at South Llano River State Park in Junction, Texas. The race features multiple distances including a 40-mile, 27-mile, half marathon, 13-mile ruck, and 5K, all set on wide rocky and single-track trails with approximately 1,000 feet of..

The Leadville Silver Rush 50M is a challenging 50-mile trail run held in Leadville, Colorado, featuring 7,503 feet of elevation gain and reaching a high point of 12,024 feet. The out-and-back course traverses historic mining roads on the east side of Leadville, offering runners stunning views of the..

The Beaverhead Endurance Runs feature two challenging races: a 100K and a 55K, taking place in Salmon, Idaho. These point-to-point races primarily traverse the Continental Divide National Scenic Trail, showcasing stunning landscapes that separate Idaho's Lemhi River Valley from Montana's Big Hole Va..

The McCall Trailrunning Classic is an annual trail running event held in the Payette National Forest near Burgdorf Hotspring, Idaho. Established in 2012, the race features two distances: a 30K and a 50K, both run on challenging alpine singletrack trails originally part of the IMTUF100 course. The 30..

The Sweet Air Trail Race, organized by the Baltimore Road Runners Club, is a challenging 7 to 8-mile trail run held at Gunpowder State Park in Sweet Air, Maryland. The course features a mix of rolling hills, fast sections, water crossings, and occasional mud, providing a varied and adventurous runni..

Grey Rock Trail Runs, held near Yakima, Washington, offers challenging summer trail races in the Cascade Mountains. The event features two distances: a rugged 25K with over 3,500 feet of elevation gain and a shorter 12K option following the same route. Both races start at Tree Phones Campground in t..

The Get Lost Trail Race, held annually at Lost Lake near Tonasket, Washington, is a scenic trail running event supporting the Okanogan Highlands Alliance, a local environmental group. The 7th annual race offers three distances: 11 miles, 7 miles, and 3 miles, welcoming runners and walkers of all lev..

The Wasatch Scramble Trail Run is a challenging 10K trail race held at Snowbasin Resort in Huntsville, Utah. Participants navigate rugged, winding singletrack trails featuring steep slopes and high altitude, offering some of the most epic views on the Spartan Trail calendar. Snowbasin Resort is know..

The Akron Trail Marathon, held in Akron, Ohio, offers marathon, half marathon, and 10K distances. The course begins at Memorial Parkway trailhead downtown, featuring an out-and-back section into the city before heading into Summit Metro Parks. Runners experience scenic, hilly trails along the Towpat..