Trail Running Calendar United States 2025-2026

The Hunter S. Thompson Fear & Loathing is a unique, no-fee urban ultra running event held annually in San Francisco, CA, since 1985. Participants can choose between a 50K or 50-mile single-loop course that starts and finishes at Twin Peaks, offering stunning city vistas.The route covers iconic touri..

The Tenth Annual Keepin' It Rural 5K/10K Trail Race and Festival takes place at the scenic Elfin Forest Recreational Reserve in north San Diego. This unique event features chip-timed races for both 5K and 10K runners, with a special course for hikers. The race begins and ends at the Olivenhain Dam,..

The Pine Mountain Trail Run is a historic ultra marathon held at FDR State Park in Pine Mountain, Georgia, just over an hour from Atlanta. Celebrating 45 years, this event features challenging 19-mile and 40-mile races over rocky, single-track trails with rolling hills and minor stream crossings. Th..

The Fall Backyard Burn Trail Run at Fountainhead Regional Park in Fairfax Station, VA, is a popular trail running event held on December 7, 2025. The race offers two challenging distances: a 4.8-mile loop with 450 feet of elevation gain and a tougher 10.5-mile course featuring an additional out-and-..

The Dirty South Trail Races, held in Knoxville, Tennessee at Mead's Quarry near Ijams Nature Center, feature a half marathon, 10K, and a Kids Trail Mile. The half marathon course spans 13.1 miles through scenic areas including Forks of the River Wildlife Area, William Hastie Park, and Ross Marble Qu..

The PPTC Endurance Fest is an ultramarathon event held in Brooklyn, NY, featuring 50-mile and 50-kilometer race options. The race takes place on a looped course within Prospect Park, consisting of 9 or 15 laps of a 3.33-mile loop. This event honors New York City's road ultra heritage, following in t..

The Dizzy Horse Backyard Ultra is a unique winter ultramarathon held in Idaho Falls, Idaho, featuring a 4.167-mile loop through a diverse course of desert, grass, horse-race tracks, gravel roads, and occasional snow. Participants run one loop every hour until only one runner remains, making it a tes..

The Last One Standing Ultra Marathon in Saint George, Utah, is a unique self-supported ultra running event featuring a 6-mile loop on the scenic Mayor's Loop asphalt trails along the Virgin River. Runners must complete each loop within 90 minutes to continue, with a total of 17 loops available, culm..

The Crystal Cove Trail Run, held at Crystal Cove State Park in Laguna Beach, California, offers a scenic and challenging trail running experience just minutes from the beach. The event features three distances: a 15K, a 6K, and a Kids 1K race. Both the 15K and 6K courses include fire road climbs, ri..

The Folsom Lake Point to Point Trail Half Marathon is a scenic trail race held in El Dorado Hills, California, near Sacramento. The 13.1-mile course is predominantly single track (95%) with some dirt road (5%), running alongside the picturesque Folsom Lake. Runners experience a mix of gentle rolling..

The Tinsel Trot 10k in Louisa, VA, is a festive cross-country running event held at Southern Revere Cellars. The course loops around the winery property, with the 10k consisting of four laps and the 5k two laps, featuring gentle terrain without major hills. Participants receive a technical event shi..

The Holmdel Classic is a challenging end-of-year trail race held in Holmdel Park, Monmouth County, New Jersey. Featuring a 4.65-mile loop with 584 feet of elevation gain, the course covers diverse terrain including grass, dirt, rocks, roots, gravel, pavement, and varied inclines. Participants can ch..

The Pocahontas Half is a scenic running event held at Pocahontas State Park in Chesterfield, Virginia. It features a half marathon, 10k, and 5k race, all taking place along the forested Bright Hope Trail. The course offers a soft running surface of dirt and pine needles with some minor hills, provid..

RunFluent Christmas is an annual running event held in Lutz, Florida, featuring a 4-mile race and a 7-hour multi-lap challenge, including a 2-person relay option. Now in its third year, the event offers a festive atmosphere with race day T-shirts for all participants and finisher awards. Top three m..

The Doomsday 50K & Half Marathon takes place in Cool, California, offering runners a challenging and scenic race experience. The 50K features 5,100 feet of elevation gain and loss, while the Half Marathon includes 1,250 feet. Both races start together at the Cool Staging Area.The event welcomes hike..

The Pup-A-Go 5k Hike/Run is an annual event held at Papago Park in Phoenix, Arizona, featuring a 5K course that loops counterclockwise around the park. Participants can run, jog, or hike with their dogs or solo, with an emphasis on community and respect for all attendees. Dogs must be leashed and va..

The Jingle Trails Challenge presented by Merrell is a festive trail running event held at McAllister Park in San Antonio, Texas. Scheduled for December 13, 2025, it features two race distances: a 10K on the Blue Loop and a 5K primarily on the Red Trail. Participants will navigate technical terrain i..

The Blue Canyon Trail Run, held in Socorro, New Mexico, offers two race distances: an 18-mile run and a 10K (6.2 miles). The event takes place at the Socorro Soccer and Rodeo Complex, with the course featuring a fast, scenic single-track trail. Aid stations are strategically placed along the routes,..

The Angry Cow Trail Run #4 takes place in Panama, Nebraska, starting at the Panama Community Center. Scheduled for December 13, 2025, this event offers trail running distances of 2, 4, and 6 miles. The course features a mix of old railroad tracks converted to trails, wooded areas with creek crossing..

The Mount Hood Nutcracker Challenge is an annual cross-country running event held in Melrose, Massachusetts, at the Mount Hood Golf Club. This unique 3.5-mile race features a challenging, hilly course that changes every year, incorporating fairways, paved cart paths, road crossings, and occasional w..