Trail Running Calendar United States 2025-2026

The Wild Thangs Trail Series is a summer trail running event held at Monte Sano State Park in Huntsville, Alabama. It features four races from June to August, offering both short and long distance options ranging from 4 miles to a half marathon. The courses showcase scenic mountain views, creek cros..

The OSS/CIA 50 Mile Night Run is a challenging ultramarathon held in Prince William Forest Park, Virginia, known for its historical ties to the U.S. intelligence community. The race features a 50-mile course primarily on single-track trails, with some fire roads and crossings, run twice to complete..

The Twisted Fork Trail Festival, held in Park City, Utah, is a celebrated trail running event featuring three race distances: 68K (42 miles), 30K (18.3 miles), and 15K (9.64 miles). Each course is hilly and challenging yet fast and runnable, winding through scenic wooded terrain with stunning views..

Lowells Loop is a unique running event held in Pleasant Hill, OR, featuring a "Last Man Standing" format. Participants run a 5-mile loop within a set time of 60 minutes to qualify for subsequent laps, with each lap starting on the hour. The event continues until only one runner remains or all others..

The Cool Moon Trail Races, held in Cool, California, offer a variety of distances including 100K, 50-mile, 25-mile, 13.5-mile, 11.5-mile, and 5K races. The course features two main loops: a 13.5-mile North loop and an 11.5-mile South loop, combining single track trails and fire roads with scenic vie..

The Q50 Races Run to the Hills is a trail running event held at Bogue Chitto State Park in Franklinton, Louisiana. Participants can choose between a 5-mile single loop or a 10-mile course consisting of two loops on scenic, dirt trails with small hills but no technical challenges. The race promotes e..

The High Bridge Challenge is a multi-distance trail running event held at High Bridge Trail State Park in Virginia. Participants can choose from various race options, including 26K, marathon, 100K, and 150K, with the opportunity to complete combined "train" races in June and December for special awa..

The Fire Trail Running Festival takes place at Guadalupe River State Park near San Antonio, Texas, offering 8K, 25K, and 50K trail races through scenic grasslands and woodlands. The course features rocky and dirt single-track trails, including Barred Owl, Painted Bunting, and Live Oak trails, with a..

The Longest Day is a unique running event taking place at Lakewood Nature Preserve in Greenville, SC, featuring multiple distance options including 100k, 50k, marathon (26.2 miles), and half marathon (13.1 miles). This timed lap challenge consists of a 2-mile loop with descending time cutoffs, welco..

The Mid-State Mile is a challenging last-person-standing running event held on private land near Franklin, Tennessee. The course, known as The Murder Mile, is a 1-mile loop featuring 340 feet of elevation gain, including two climbs, runnable sections, and a downhill stretch on a wide double-track ol..

The FARM Barn Burner is a trail running event held in Birmingham, Alabama, offering both a half marathon and a 10K race. The courses start at Dunnavant Valley Fields and feature scenic routes along the Dunnavant Valley Greenway, Yellow Leaf Creek, and several trails including the Waterfalls trail an..

The Kan is an annual mountain running event held at Mt. Spokane State Park in Spokane, Washington, on June 14, 2025. It offers three race distances: 50k, 25k, and 10k, with start times from 7:00 AM to 8:00 AM.The course features alpine meadows, pine forests, and ski trails, providing a fast yet chal..

The Miami 50/50 is a unique 50-mile urban ultramarathon held in Miami, Florida, featuring a two-person team format where both runners complete the entire distance together. The race course winds through iconic Miami neighborhoods such as Wynwood, Miami Beach, Key Biscayne, Calle Ocho, Coconut Grove,..

The Thunderbird Warrior Challenge is a trail running event held at Mt. Ashwabay Outdoor Recreation Area in Bayfield, Wisconsin, on June 14, 2025. It features multiple race distances, including a 50K, 25K, 10K, and a 5K fun run with an obstacle course.The course showcases scenic Northwoods trails, te..

The Last Stand Army Backyard Ultra is a challenging endurance race held in Midlothian, Virginia, on Flag Day, June 14, 2025, to honor the 250th Birthday of the U.S. Army. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner remains to complete a final loop.The..

The XTERRA Transcend Trail Run, held annually at Dickerson Mine Preserve in Randolph, New Jersey, offers a scenic and accessible trail running experience. The event features three race distances: a 5K (3.1 miles, 170 feet elevation gain), a 10K (6.8 miles, 400 feet elevation gain), and a half marath..

The Barr Lake Trail Race, held annually in Brighton, Colorado, offers a scenic and fast trail running experience around Barr Lake State Park. Celebrating its sixth year, the event features multiple distances: 50K, 30K, half marathon, 15K, and 5K, all on flat, dirt terrain with minimal elevation gain..

The Wicked Root 50K is an annual ultramarathon held over two days in Lowell, North Carolina, celebrating its 10th year. The event features a challenging 10-mile loop course within a park, with a total elevation gain of 1,400 feet per loop. Participants can also choose to run a 50K on either Saturday..

The Cotter Bridge Ultra, held at Big Springs Park in Cotter, Arkansas, is a unique timed running event featuring 1, 3, 6, and 12-hour race options. Runners complete repeated 4.1667-mile laps, each starting hourly with just under an hour to finish. The course is a scenic, mostly flat 2.08-mile out-an..

The Highlands Sky 40 Mile Trail Run is a premier ultramarathon held annually in Davis, West Virginia, primarily within the Monongahela National Forest. Starting and finishing at Canaan Valley State Park, the challenging 40-mile course traverses rugged and scenic terrain including the Roaring Plains..