Trail Running Calendar United States 2025-2026

The Little Duck 50k is a trail running event held in Windham, Maine, at the scenic East Windham Conservation Area. Scheduled for October 5, 2025, it offers two race distances: a challenging 50k ultra-marathon consisting of five 6.5-mile loops, and a 10k single loop. Each loop features nearly 1,000 f..

The HOKA Kodiak Ultra Marathons by UTMB is a challenging alpine trail running event held in Big Bear Lake, California, a rustic mountain town near Los Angeles. The race spans two days with five distances ranging from 10.4 km to 159.3 km, featuring significant elevation gains up to 4100 meters. Runne..

The West Virginia Trilogy is a challenging three-day stage race held in Circleville, WV, on Spruce Knob, the state's highest peak, within the Monongahela National Forest. The event features three distances: a 50-kilometer run on day one, a 50-mile run on day two, and a 13.1-mile half marathon on day..

The Heartland event in Cassoday, Kansas, is a challenging ultra-running race featuring multiple distances: 125 miles, 100 miles, 100K, Teter Rock 100K, 50 miles, marathon, and half marathon. The course primarily follows backcountry gravel roads with minimal pavement, winding through the scenic Flint..

The Moab 240 Endurance Run is a challenging 240-mile ultramarathon held in Moab, Utah, traversing diverse and rugged terrain including desert canyons, two mountain ranges, and iconic red rock mesas with views of Canyonlands and Arches National Parks. The course features a total elevation gain and lo..

The Biggest Little Ultra is a multi-day ultrarunning event held at Sparks Marina in Sparks, Nevada, a scenic location featuring a 2-mile paved, lighted loop with minimal elevation gain. The race offers various fixed-time and fixed-distance options, including 6, 12, 24, and 48-hour races, as well as..

The Mile Madness Endurance Run is a multi-day ultrarunning event held at Sunset Whitney Recreation Area in Rocklin, California. The course is a professionally measured 1.05-mile loop featuring 85% dirt trail and 15% paved path, with about 62 feet of elevation gain per lap. Runners can choose from va..

The Tesla Hertz Run is an ultramarathon event held in Rocky Point, New York, featuring multiple race distances including 150 miles, 100 miles, 100K, 50 miles, 50K, and 10 miles, with both daytime and nighttime options. The course is a scenic 10.48-mile loop through the pine barrens of Long Island, o..

The Thrasher Night Trail is a nighttime trail running event held at Cave Creek Regional Park in Cave Creek, Arizona. It offers four distances: 33K, 22K, 11K, and 5K, all featuring rolling desert single-track trails with fast sections and challenging climbs on the Slate, Quartz, Go John, and Overton..

The Long Hunter Trail Runs take place in Long Hunter State Park near Nashville, Tennessee, offering 50K, marathon, and half marathon distances. The courses loop around Couchville Lake and include trails such as Bryant Grove, Cliff Trail, and Jones Mill, with the half marathon featuring the Inland Tr..

The Swedish Mile Trail Run 2025 takes place at the Vasaloppet Nordic Center in Mora, Minnesota. This family-friendly event features a rugged, well-marked trail system offering a timed 10K race, a 5K fun run and walk, and kids' races of approximately 1 mile and 1/2 mile distances. The 10K race includ..

The Bear Trap Trail Races, held annually in Tooele County, Utah, offer marathon, 23K, and 10K trail running events through the scenic Settlement Canyon and surrounding Oquirrh Mountains. The courses feature a mix of forested singletrack, rugged dirt roads, exposed ridgelines, and foothills with stun..

Granite Head 2025 is a trail running event held in Granite Bay, California, featuring two challenging courses: a 6.6-mile short course and an 11.2-mile long course. Both races start and finish at Granite Beach, offering scenic trail running experiences. Participants receive a unique tech shirt and e..

The Mad Meadows 50 is a challenging trail running event held near Leavenworth, Washington, featuring two distances: a 50-kilometer and a 50-mile race. Set in the scenic Eastern Cascades during October, the course offers a mix of smooth single track, steep climbs, and technical sections framed by gol..

The Virginia Trail Running Festival, held in Max Meadows, Virginia, is an exciting trail running event featuring 100-mile, 100-mile relay, and 50-mile race options. Scheduled for October 11-12, 2025, the festival offers challenging courses with moderate elevation gains—1,500 feet for the 100-mile an..

The Greene River Trail 5K, held in Rices Landing, Pennsylvania, is a scenic running and walking event organized by Greene County Parks & Recreation. The course runs along the picturesque Greene River Trail, offering participants stunning views of the Monongahela River. Suitable for all fitness level..

The Mt. Umunhum Trail Conquest-Fall is a trail running event held at Almaden Quicksilver County Park in San Jose, California. The race offers multiple distances including a 5K, 7 Mile, Half Marathon, 30K, Trail Marathon, and a challenging 50K.The longer courses venture into the scenic Sierra Azul Op..

Rock It in Chino Hills is a trail running and hiking event held at Chino Hills State Park in Brea, California. Participants can choose between a 5K or 10K course, both offering scenic views and tranquil natural surroundings with trails extending across the expansive park. The event emphasizes the be..

The Sage Burner Trail Race takes place in Gunnison, Colorado, within the scenic Hartman Rocks Recreation Area near Black Canyon National Park. This fall event offers three distances: 50K, 28K, and 15K, featuring a challenging course with technical slickrock, smooth singletrack, and fast doubletrack..

The Backbone Trail Run takes place in Dundee, Iowa, within the scenic Backbone State Park. This event offers two race distances: a moderate 4.3-mile course and a more challenging 10K Lake Loop. Participants enjoy a well-organized trail run featuring a mix of pavement and natural trails, providing be..