Trail Running Calendar United States 2024-2025

The Cruel Jewel 100 is an ultra-marathon spanning 103.54 miles through the scenic Chattahoochee National Forest in North Georgia. The course features a mix of 94 miles of trails and 10 miles of mountain roads, with 20 aid stations available for participants. Runners will encounter challenging terrai..

The High Lea 6/12/24 Hour event, held at Richfield Heritage Preserve in Richfield, OH, offers a variety of running challenges, including a new 100-mile race for 2024. Participants can choose from 6, 12, or 24-hour formats, with a scenic 3-mile course featuring gravel roads and shaded trails. The eve..

The Endure Trail Runs, hosted by the Human Potential Running Series, takes place at Mueller State Park in Divide, Colorado. This unique event features a variety of races, including a 10k, Half Marathon, and timed challenges of 12 and 24 hours. Participants in the 12-Hour event will draw colored ball..

Pound the Mound is an exciting running event taking place at Blue Mounds State Park in Luverne, MN, on May 17, 2025. Participants can choose from three distances: 30 miles, 20 miles, or 10 miles. The event encourages early registration, with a deadline of April 30, 2025, to guarantee a t-shirt. Addi..

The SMR Mayapple Trail Runs, taking place on May 17, 2025, in South Mountain Reservation, Millburn, NJ, features a variety of race distances including 50 miles, 50K, 20 miles, 10 miles, 5 miles, and a Kids 1 Mile Run. Organized by the South Mountain Conservancy and supported by local volunteers, the..

The Sunderbruch B&B Trail Races, hosted by the Quad Cities Trail & Ultra Runners, will take place at Sunderbruch Park in Davenport, Iowa, featuring 5K and 10K trail running events. Participants can expect a fun atmosphere with beautiful single-track trails, a post-race potluck with plenty of bacon a..

Possum's Revenge is an exciting trail running event held in Graford, TX, featuring a variety of race distances including 69 miles, 52 miles, 56K, 17 miles, 8 miles, and 4 miles. Set against the stunning backdrop of Possum Kingdom Lake, participants will encounter diverse terrain, including rocks, ro..

The Napa Wilderness Trail Runs, organized by Bay Trailrunners, takes place at Skyline Wilderness Park in Napa, CA, offering a variety of trail running distances including 40 miles, 50K, 30K, half marathon, and 10K. This event caters to all levels of runners, from seasoned ultra-marathoners to beginn..

The Galena Sky Trail Races, held at Chestnut Mountain Resort in Galena, IL, features an 8-hour and a 4-hour timed loop course, offering runners a chance to conquer scenic trails with stunning views of the Mississippi River. Participants can run as many loops as they desire within their time frame, w..

The Born to Adapt - Los Olivos will take place in Los Olivos on Saturday 17 May 2025. You can run between 10 and 100 miles.

The Sky Pilots Ouray Backyard Ultra is a unique running event held in Ouray, Colorado, featuring a "last person standing" format. Participants complete a 4.167-mile course, with the challenge of finishing within an hour to continue racing each hour. The course is relatively easy, with minimal elevat..

The Bradshaw Beatdown 50K is an exciting trail running event set in the rugged terrain of the Bradshaw Mountains in Prescott, AZ. This unofficial "fatass" style race features a minimal entry fee and offers a marked course with aid stations providing water and snacks. Participants will tackle challen..

Cruel Jewel 50 is a challenging 57.5-mile trail race set in the stunning Chattahoochee National Forest in North Georgia. This point-to-point event features a mix of 50 miles of rugged trails and 7.5 miles of mountain roads, with 10 aid stations along the route. Participants will navigate technical s..

The Bishop High Sierra Ultras is a challenging running event set in the scenic foothills of the Eastern Sierra Nevada, taking place on May 17, 2025, at Millpond Recreation Area in Bishop, CA. Participants can choose from five distances: 6K, 20 Mile, 53K, 50 Mile, and 100K, with courses primarily on ..

The O'Neill Park Trail Races, scheduled for May 17, 2025, offer a stunning running experience in the scenic O'Neill Regional Park, located in Trabuco Canyon, California. Participants can choose from various race distances, including a 50k, marathon, 30k, half marathon, and 10k. The event emphasizes ..

The Conestoga Crusher 10K Trail Race, along with the Conestoga Cruiser 5K Trail Race and the Kids Trail Race, will take place on May 17, 2025, at Kelly's Run Nature Preserve in Holtwood, PA. This event offers a challenging 10K course featuring steep climbs, creek crossings, and stunning views from t..

The Blue Ducky 5K Waddle is an annual running event held at Audubon Park in New Orleans, Louisiana, honoring the memory of Stephany Nicolosi, a dedicated advocate for organ donation. This year marks its second edition, with a portion of the proceeds benefiting the Chris Klug Foundation, which promot..

Death by 5k Waterloo is an exciting endurance event returning for its third year at George Wyth State Park. Participants are challenged to complete ten 5k runs within a 24-hour period, with each run starting 2.5 hours apart. The event features a scenic out-and-back course on the Cedar Valley Lakes T..

The AdventHealth Rock Springs 5K - 10K Trail Run is scheduled for May 17, 2025, at the Rock Springs Run State Reserve in Sorrento, Florida. Participants can choose between a 10K trail run (6.2 miles) and a 5K trail run (3.1 miles), both featuring loop courses through scenic trails. The event include..

The Butterfield Backyard Ultra is a unique running event held at Butterfield Trailhead Regional Park in Herriman, Utah. Participants tackle a 4.167-mile loop course, completing it once every hour for either 12 or 24 hours. The race emphasizes camaraderie, strategy, and personal endurance, with all f..