Trail Running Calendar United States 2024-2025

The Oakadoke Trail Runs is a summer trail running event held in Valparaiso, IN, featuring scenic courses of 18 miles, 9 miles, and 4 miles through the picturesque Creekside Trails. Participants can enjoy a challenging yet enjoyable experience with tree-covered single-track paths, winding switchbacks..

The Loopy Looper is an ultra marathon event held at Cooper River Park in Pennsauken, NJ, featuring 12-hour, 24-hour, and 101.25-mile races. Participants run on a flat, 3.75-mile loop, aiming to complete as many laps as possible within their designated time. The event includes individual and team rel..

The Hamster Endurance Runs is a unique running event taking place in Bellingham, featuring 6, 12, 24, and 32-hour races. Established in 2013, the event promotes a fun and challenging atmosphere while raising funds for local organizations, specifically benefiting the Whatcom Family YMCA's Girls on Th..

The 3H Trail Half Marathon, scheduled for August 2, 2025, takes place in King George, Virginia, along the scenic Dahlgren Railroad Heritage Trail. This flat and smooth course, ideal for runners, features a variety of surfaces and is predominantly shaded by trees. Participants can expect a well-organ..

The Waldo 100K Ultramarathon is a challenging race set in the scenic Willamette Pass, Oakridge, Oregon. This 100K loop course features a mix of single-track trails and remote sections, offering stunning views of Waldo Lake and the surrounding mountains, including Fuji and Maiden Peak. Designed for e..

The Riley Park Trail Races, held in Thomas F. Riley Wilderness Park, Coto de Caza, CA, offers a variety of race distances including a 30k, half marathon, 10 miler, 10k, and 5k, making it a family-friendly event suitable for all skill levels. Participants can enjoy beautiful trails and the morning su..

The Skyline 50K Endurance Run is one of California's oldest and most celebrated 50K races, taking place annually in August at Lake Chabot Marina in Castro Valley. This event is designed for both first-time ultrarunners and seasoned veterans, featuring a scenic course that loops through the East Bay ..

The Merrie Mill Farm & Vineyard 10k is a scenic running event taking place on August 3, 2025, at the picturesque Merrie Mill Farm & Vineyard in Keswick, VA. Participants can enjoy a challenging course that includes notable hills, flat gravel, and paved roads. The event welcomes both runners and walk..

The TransRockies Run is an exhilarating six-day stage race set in the stunning Colorado Rockies, covering a total distance of 120 miles. Scheduled for August 4-9, 2025, this event promises an unforgettable adventure for participants, fostering a unique community spirit among runners. The race is des..

The Lory Summer Trail Series, hosted by Gnar Runners, features a series of midweek trail races in August 2025 at Lory State Park, Fort Collins, Colorado. Participants can choose from distances of 5K, 10K, and 12K, designed to cater to both novice and experienced trail runners. The event aims to crea..

Salt and Sulfur 420 is an ultra-distance running event covering 420 miles, starting in Salt Lake City, Utah, and concluding in West Yellowstone. Participants will experience a diverse terrain, including urban areas and scenic trails, showcasing the Wasatch range, Ogden Canyon, Logan Canyon, Bear Lak..

The Buckeye Ultra 200 Mile Road Race is an adventurous running event that spans approximately 203 miles from Walnut Beach at Lake Erie to Wellsville, Ohio. Participants will encounter diverse scenery, including mountain foothills and Amish country, while navigating a course with nearly 6,000 feet of..

The High Five 100 is an ultra-running challenge held in Lake City, CO, designed to test even the most elite runners. Participants must navigate on foot to 22 designated locations, including 6 checkpoints for crew support and 16 proof points to verify their journey. Runners can choose their own route..

The Kansas City Backyard Ultra is a unique running event held at Mill Creek Park, where participants aim to complete 4.16667 miles every hour until only one runner remains. This "Last Runner Standing" format challenges competitors to maintain their pace over multiple loops, with strict rules governi..

The Bigfoot 200 Mile Endurance Run and the Bigfoot 20 Mile Run are exciting trail running events held in the stunning Cascade Mountains of Washington, specifically around Mount St. Helens. The Bigfoot 200 is a unique point-to-point race, recognized as a Hardrock 100 and Western States Qualifier, fea..

The Wyoming Range 100-Mile Endurance Run is a challenging ultra-marathon set in the stunning landscapes of the Bridger-Teton National Forest. Scheduled for August 8-10, 2025, this point-to-point race covers approximately 105 miles with a significant elevation gain of 24,000 feet, reaching a maximum ..

The Bear Country Night Trek in Waco, Texas, offers an exciting nocturnal running experience on the scenic trails of Cameron Park. Participants can choose from 5K, 10K, or 15K trail runs, as well as a 10K ruck. As night falls, headlamps light the way through challenging terrain, making for a thrillin..

The Vertigo Night Runs, hosted at White Tank Mountain Regional Park in Waddell, AZ, offers a thrilling experience for trail runners of all levels. Participants can choose from various distances, including 6K, 10K, 20K, 31K, and 52K, making it suitable for both beginners and seasoned athletes. This e..

The Kat'cina Mosa 100K Mountain Run is a challenging and scenic trail race set in the Wasatch Mountains above Provo, Utah. The course features a mix of dirt trails, dirt roads, and paved sections, with a significant elevation gain and loss of over 15,000 feet. Approximately 42% of the route overlaps..

The Eddy Trail Races, set in Annandale, MN, features two main events: the Big Eddy 50k and The Eddy Half Marathon. Participants will navigate scenic trails through the Stanley Eddy Park Reserve, offering a challenging yet rewarding experience. The event emphasizes community, with opportunities for l..