Trail Running Calendar United States 2025-2026

The Lake of the Ozarks Endurance Runs, held in Linn Creek, Missouri, is a trail running event featuring three races: the Wandering Bobcat 5 Miler (about 5.5 miles with 700+ feet elevation), the Trail of Four Winds 25K (a challenging 25K with 1600+ feet elevation through Lake of the Ozarks State Park..

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 starts on the south rim, descends 1,300 feet to cross the New River, then climbs 1,300 feet to the opposite rim, featuring..

The Ozark's Mountain Challenge is a unique hiking event held at Sam A. Baker State Park in Patterson, Missouri. Participants aim to ascend Mudlick Mountain multiple times within 12 hours, covering approximately 21 miles and gaining 7,980 feet in elevation—equivalent to climbing Mount Olympus in Wash..

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..

XTERRA New Jersey is an off-road multisport event held at the scenic Wawayanda State Park, featuring over 40 miles of trails and a clear lake. Part of the XTERRA World Tour, it offers a variety of races including trail runs (5K to 42K), gravel and mountain bike races, and triathlons such as full dis..

The Tick is a challenging 57.41-mile ultra running event held in Alexander Springs, Florida, traversing the rugged wilderness of Ocala National Forest. The point-to-point course follows the Florida National Scenic Trail from Alexander Springs State Park to Rodman Reservoir Dam, featuring diverse eco..

The Miwok 100K is a renowned trail ultramarathon held near Stinson Beach, California, just under an hour from San Francisco. The challenging 100-kilometer course features 11,800 feet of elevation gain across single-track trails, dirt roads, and about a mile of paved road. Runners enjoy stunning view..

The Greenland Trail Races, held annually in May at Greenland Open Space in Larkspur, Colorado, offer four race distances: 4 miles, 8 miles, 25K, and the 50K ultramarathon, known as Colorado's fastest 50K. The course features wide, smooth dirt trails through native grasslands, oak hills, and ponderos..

The Big Deal at Great Seal is a challenging running event held at Great Seal State Park in Chillicothe, Ohio. The race features multiple distances including a 100-mile ultra, 100k, 20-mile, adult 5k, and a 5k youth run. The course consists of a 20-mile loop primarily on single-track trails with two..

Niwot's Challenge is a unique, invitation-only endurance event held annually near Sedalia, Colorado, along the South Platte River in the Front Range. Unlike typical races, it emphasizes self-reliance, navigation, and mental toughness over speed. The course is a secret, off-trail gauntlet requiring m..

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 paved trail course with a total elevation gain of 624 feet, including a climb into the foothills of South Mountain. Runners..

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, traversing grassy terrain with a well-m..

The Donald Dash Trail Run is a popular trail running event held at Donald County Park in Mount Horeb, Wisconsin. It offers two race distances: a 5K for beginners and a more challenging 15K for experienced runners. The course features diverse terrain including prairie, single track, sand, slick bridg..

The Dingneng Wang event, held in San Diego, CA, is a non-competitive marathon along the 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. The course is a clockwise loop with a total distance of..

The Prickly Pine Jackpot 24 Hour Solo/Relay is an endurance running event held in the scenic Kettle Moraine State Forest near Dousman, Wisconsin. Participants can choose from multiple race options including 6-hour, 12-hour, and 24-hour solo races, as well as 12-hour and 24-hour relays. The course fe..

The Bluffs Trail Runs, held at Echo Bluffs State Park in Eminence, Missouri, offers a variety of trail running events including a Trail Marathon, Half Marathon, 15K, 10K, 5K, and youth races such as a 1-mile fun run. The courses traverse scenic landscapes through Echo Bluffs and Current River State..

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 VCP50k is an ultramarathon held in Bronx, New York, founded in 2023 and designed to accommodate both novice and experienced runners. The race features a challenging yet accessible course consisting of ten loops on the classic Tortoise and Hare cross country trail, plus an initial lap on flat ter..

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..

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 Double Take course. The park is closed to traffic during the event, allowing runne..