Trail Running Calendar United States 2025-2026

The TransRockies Run is a renowned six-day, 120-mile stage race held in Colorado, offering an unforgettable trail running adventure through the Rocky Mountains. This multi-day event challenges participants with rugged terrain and scenic mountain landscapes, fostering a strong community atmosphere am..

The Lory Summer Trail Series is a fun, low-key trail running event held each Tuesday evening in August at Lory State Park, Fort Collins, Colorado. It features a series of shorter races with distances ranging from 5K to 12K, designed to welcome new trail runners and help experienced racers sharpen th..

The Catamount Weekly Trail Running Race will take place in Williston on Tuesday 5 August 2025. You can run between 5 and 5 kilometers.

The Eltuck Valley 5K is part of a series of midweek trail races held at Lory State Park in Bellvue, Colorado. Scheduled for August 5, 2025, this event is designed to cater to both novice and experienced runners, offering a flat and fast course ideal for those looking to improve their speed. Particip..

The Saddleback Wilderness 5k Trail Run is an exciting running event set in the scenic Saddleback Wilderness, located in Orange, California. Scheduled for August 6, 2025, this race features a 5k course that includes both fire roads and single-track trails, with an elevation gain of 300 feet. Particip..

Salt and Sulfur 420 is a 420-mile ultramarathon starting in Salt Lake City, Utah, and ending in West Yellowstone. The race features a combination of urban and trail running, passing through scenic locations such as the Wasatch Range, Ogden Canyon, Logan Canyon, Bear Lake, Jackson Hole, the Tetons, a..

The Buckeye Ultra 200 Mile Road Race is a challenging ultramarathon covering approximately 203 miles from Walnut Beach on Lake Erie to Wellsville, Ohio. Runners experience diverse scenery, including mountain foothills, industrial cities, Amish country, and lakefront streets. The race features a mix..

The Bigfoot Endurance Runs, part of the renowned Triple Crown of 200-mile races in the United States, includes the Bigfoot 200, Tahoe 200, and Moab 240. Set in the stunning Cascade Mountains of Washington, the Bigfoot 200 features a challenging 207.9-mile course that circumnavigates iconic peaks suc..

The Wyoming Range 100-Mile Endurance Run is a challenging trail race held in the rugged Wyoming Range, within Bridger-Teton National Forest. Covering approximately 105 miles with 24,000 feet of elevation gain, the race traverses high-altitude wilderness, including the Wyoming Range National Recreati..

The Kansas City Backyard Ultra is a trail running event held in Mill Creek Park, Missouri, featuring a unique "Last Runner Standing" format. Runners compete by completing 4.1667-mile loops within one hour, continuing until only one participant remains. The race emphasizes endurance, strategy, and pe..

The Anchor Down Ultra is a premier ultra-marathon event held at Colt State Park in Bristol, Rhode Island. This seaside race features three distinct events: a 6-hour, a 12-hour, and a 24-hour ultra-marathon, catering to various levels of endurance runners. Recognized as one of the "Best Races in Amer..

The Bear Country Night Trek is a nighttime trail running event held in Waco, Texas, at Cameron Park. Participants can choose from 5K, 10K, or 15K trail runs, as well as a 10K ruck carrying a minimum of 25 pounds. The course features dirt and rocky single-track trails with a hilly terrain, including..

Run Baileys is a trail running event held in Chauncey, Ohio, at the scenic Baileys Trail System near Athens. The event features a variety of distances including a free 1.5-mile Kids Run, a 5K, and a Half Marathon, catering to runners of all levels from beginners to seasoned trail veterans. Taking pl..

The High Five 100 is an extreme ultra-endurance running challenge held in Lake City, Colorado. Covering approximately 90 to 105 miles with over 40,000 feet of elevation gain, the course requires runners to summit five 14,000-foot peaks and six 13,000-foot peaks within 48 hours. Unlike traditional ra..

Capt'n Karl's Trail Series at Reveille Peak Ranch is a premier running event taking place in Burnet, Texas, on August 9-10, 2025. This series features a variety of race distances, including a 60K, 30K, 20K, 10K, a Sunset 5K, and a Youth 1-Mile Trail Run for children aged 12 and under. Set in a stunn..

The 605 Trail Fest is an exciting running event scheduled for August 9, 2025, at Good Earth State Park in Sioux Falls, South Dakota. This festival features a variety of trail races, including an 8-mile race and a 4.5-mile race, catering to runners of different skill levels. Additionally, there is a..

The Slate Valley Scramble, organized by Slate Valley Trails, is a trail running event taking place on August 9, 2025. Participants can choose between an 8k and a half marathon, both set on scenic singletrack and double-track trails in Vermont's Slate Valley. A Kid's Fun Run is also available for chi..

The Landis Arboretum 5K Forest Run is an annual event held in Esperance, NY, showcasing a scenic cross-country course through the Arboretum's forests and meadows. Participants can enjoy stunning views of the Schoharie Valley while competing in this 19th edition of the race. The event features age gr..

Wy’east Trailfest is a premier mountain trail running event held at Mt. Hood Meadows in Oregon, showcasing the alpine terrain of Mt. Hood.The festival features challenging and scenic races over two days, including a 50-mile point-to-point course with 11,100 feet of gain, a 50K, a 28K loop, and a ste..

The Tahqua Trail Run, organized by Great Lakes Endurance, features a scenic 25K and 10K race set in the beautiful Tahquamenon Falls State Park in Paradise, Michigan. Participants will experience a diverse course that includes dirt forest roads, the North Country Trail, and stunning views of the Tahq..