Trail Running Calendar United States 2025-2026

The Oxbow Trail Runs is a family-friendly trail running event held at scenic Oxbow Regional Park near Gresham, Oregon, about 30 minutes from downtown Portland. Scheduled for April 26, 2026, the race offers three distances: 5k, 10k, and a half marathon. The courses start and finish at the Alder Picni..

Leatherman's Loop is a renowned 10k trail race held annually each spring at the Ward Pound Ridge Reservation in Cross River, New York. Established in 1987, it is considered the largest trail race on the East Coast of the United States. The event features a challenging and scenic course through the r..

Coyote Two Moon is a challenging trail running event held in the scenic Los Padres National Forest near Ojai, California. The race offers a variety of distances ranging from a 10K fun run to ultra distances including 30K, 55K, 55 miles, 100K, and a grueling 100-mile course. The ultra courses feature..

The Salt Flats Endurance Runs take place at the Bonneville Salt Flats International Speedway near Wendover, Utah. This event offers multiple ultramarathon distances including 50K, 50 mile, 100K, and 100 mile races, all starting simultaneously on Friday morning. The courses begin on the iconic salt f..

The WausaUltra event, held in Wausau, Wisconsin at Sylvan Park, offers three race formats: Limitless, Double, and Solo. The Limitless race is a "last runner standing" challenge where participants run a 4.167-mile mostly trail loop every hour starting Friday morning, continuing until only one runner..

The Lake of the Ozarks Endurance Runs, held at Lake of the Ozarks State Park in Kaiser, Missouri, features three races: the Wandering Bobcat 5 Miler, the Trail of Four Winds 25K, and the LOZ Traverse, a challenging 35-mile event combining 32 miles of running with 3 miles of paddling. The courses off..

The New River Gorge Rim to Rim Race is a scenic 6-mile road running event held in Fayetteville, West Virginia, within the New River Gorge National Park and Preserve. The course descends 1,300 feet from the south rim, crosses the New River at the gorge bottom, and climbs 1,300 feet to the opposite ri..

The Tick is a challenging 57.41-mile ultra running event held in Florida's Ocala National Forest, starting at Alexander Springs State Park and finishing at Rodman Reservoir Dam. The point-to-point course follows the Florida National Scenic Trail, featuring diverse ecosystems such as lakes, prairies,..

The Dingneng Wang event, held in San Diego, CA, is a marathon taking place on May 2, 2026, at Los Penasquitos Canyon Trail. Formerly known as the PQ & GZ Trail Marathon, it was renamed to honor Dingneng Wang, a beloved runner and outdoor enthusiast. This unique event is not a race and offers no offi..

Take 5 in the Garden is a scenic running event held in Colorado Springs, CO, within the stunning Garden of the Gods park. The race offers multiple distances including a 5K, 5 Miler, 5 Mile Trail, and a longer 9.5-mile course called Double Take. The park is closed to traffic during the event, allowin..

The South Mountain Half Marathon, organized by Happy Trails Racing, takes place in Lehi, Utah, along the scenic Jordan River Parkway. This 13.1-mile race features a challenging course with a total elevation gain of 624 feet, including a climb into the foothills of South Mountain. The route is fully..

The Grayson Highlands trail races, held annually in May at Grayson Highlands State Park, Virginia, offer a scenic and challenging mountain running experience. Distances include 50 miles, 50K, 25K, and 8 miles, featuring significant elevation gains ranging from 1,200 to 9,500 feet. The course showcas..

Niwot's Challenge is a highly demanding ultramarathon held annually in Sedalia, Colorado, along the South Platte River in the Front Range. Modeled after the grueling Barkley Marathons, it features a mostly off-trail course requiring advanced navigation skills using map and compass, with no GPS allow..

The Heartland 50 is an ultramarathon event held in Cassoday, Kansas, featuring 25K, 50K, and 50-mile distances. The course is an out-and-back route primarily on backcountry gravel roads with less than a mile of pavement, winding through the scenic Flint Hills tallgrass prairie. It offers a challengi..

The TutHell 50K is a unique ultramarathon held in Sioux Falls, South Dakota, featuring a challenging course that consists of running a 0.31-mile loop up and down Tut Hill 100 times. The course includes approximately 90 feet of elevation gain and loss per loop, with a well-marked single-track route o..

The Ozark's Mountain Challenge is a demanding hiking event held in Patterson, Missouri, featuring a 17-mile course with a total ascent of 7,980 feet—equivalent to climbing Mount Olympus in Washington. Participants hike up Mudlick Mountain nine times within a 12-hour window, with shuttles returning t..

The Greenland Trail Races take place annually in May at Greenland Open Space in Larkspur, Colorado. Offering four distances—4 miles, 8 miles, 25K, and 50K—the event features a fast, beginner-friendly course on wide, smooth dirt trails through native grasslands, oak hills, and ponderosa pine forests..

The Donald Dash Trail Run is a popular trail race held at Donald County Park in Mt. Horeb, Wisconsin. It features well-marked courses through a scenic rural setting with diverse ecological views, welcoming both newcomers and experienced runners.The event offers distances including 5 km and 15 km, wi..

Last Person Standing by Flint Creek Endurance is a unique endurance running event held in Gentry, Arkansas. Participants run a 1-mile loop that must be completed within 20 minutes. The race starts early in the morning and continues with loops every 20 minutes until only one runner remains or no one..

The Farm Park Challenge is a unique trail running event hosted by My Muddy Shoes at the Agricultural History Farm Park in Montgomery County, Maryland. Participants can choose from three timed challenges—3-hour, 6-hour, or 10-hour—where runners must complete one lap of the course each hour, resting o..