Trail Running Calendar United States 2025-2026

The O'Neill Park Trail Races is a scenic trail running event held in Trabuco Canyon, California, featuring various race distances including 10K, half-marathon, 30K, 50K, and marathon. The race showcases the stunning natural beauty of O'Neill Park, a treasured location in South Orange County. Partici..

The Sand to Serengeti is a trail running event held at Green Lakes State Park in Fayetteville, NY. It features two race distances: a challenging 10-mile trail run and a shorter 3-mile trail run. The 10-mile course starts at the sandy beach, winds around Round Lake, ascends to an area known as the Se..

The Upland Hills Trail Run 2025 is set to take place at Upland Hills Farm in Oxford, Michigan, featuring a variety of trail running events including a 1 Mile, 5K, and 10K run. Open to participants of all ages and fitness levels, this event is organized by students from Upland Hills School, making it..

The PDX 50K is an ultramarathon held in Portland, Oregon, organized by Run Pacifica, a small running group focused on unique and fun routes. The race starts at Brooklyn Park in Southeast Portland and covers a diverse course featuring roads, car-free paths, and dirt/gravel trails across all six quadr..

Winona Forest's Chase The Day Trail Ultra is a 24-hour trail running event held at Winona Forest CCC Camp in Mannsville, NY. Participants run a smooth, well-maintained 2.6-mile loop with no technical terrain or significant elevation changes. The event welcomes runners of all abilities, offering both..

Rumble on the Ridge is an exciting endurance event inspired by the Backyard Ultra format, taking place on a family dairy farm in Arena, Wisconsin. Participants navigate a looped course, known as "The Drifty Mile," which varies between 1 to 1.25 miles with a minimum elevation gain of 250 feet. Runner..

The Bluewater Canyon Trail Race is a scenic 5-mile trail event taking place in Bluewater, New Mexico. Participants will start at the Bluewater Canyon parking lot, running along a gravel road before ascending over 500 feet to enjoy breathtaking views of the surrounding mountains and canyon. The cours..

The Dynafit Boneyard Boogie is a trail running event held in Eagle, Colorado, as part of the Vail Trail Running Series organized by the Vail Recreation District. The race offers two distance options: 14K and 6K, providing a scenic and challenging course through the mountainous terrain of the area. T..

The Butterfield Backyard Ultra is a unique ultramarathon held at Butterfield Trailhead Regional Park in Herriman, Utah. Participants run a 4.167-mile trail loop every hour, aiming to complete as many loops as possible within 12 or 24 hours. The race emphasizes camaraderie, strategy, and endurance, w..

The Pacifica Foothills Trail Run, held at San Pedro Valley County Park in Pacifica, California, offers trail running distances of 10K, Half Marathon, and 30K. Set within 1,150 acres of coastal mountain terrain in the Santa Cruz Mountains' northern spur, the courses feature moderately technical dirt..

The Run Ragged Last Person Standing is a challenging endurance event held in Berlin, Connecticut, hosted by the CT Trailmixers. Set on the rugged, hilly, and technical terrain of Ragged Mountain, runners tackle a roughly 3.11-mile loop every hour, starting at 8:00 AM. Participants must complete each..

Adrenaline Night Runs is a nighttime trail running event held at McDowell Mountain Regional Park in Fountain Hills, Arizona. Part of the Insomniac Night Trail Run Series, it offers multiple distances: 6K, 10K, 15K, 25K, and 50K. The courses feature rolling desert single-track trails, including Escon..

The Whitaker Wander 5K is an exciting trail run and walk set in the scenic Whitaker Woods of North Conway, New Hampshire. Scheduled for May 17, 2025, the event features a diverse course that includes flat wooded loops, climbs, and gradual downhill sections, ensuring a fun experience for participants..

The Wilbur Wild Goose Chase is a family-friendly 5K fun run held in Wilbur, Washington. The course features a gradual incline on the way out and a downhill return, mostly on pavement with a small section of packed gravel. Participants can walk, run, or push strollers, with no cut-off time.The event..

The Tour de Trail: Shawnee Mission Park North is part of a series of trail running events designed to showcase the beautiful trail systems in the Kansas City area. This 10k-ish race offers participants a chance to experience varying trail conditions, with distances ranging from 5.5 to 6.5 miles. Reg..

The Galena Sky Trail Races, set for May 17, 2025, offer an exciting challenge for trail running enthusiasts at Chestnut Mountain Resort in Galena, IL. Participants can choose between an 8-hour or 4-hour timed loop course, featuring scenic views of the Mississippi River. The event includes a festive..

The Timp Trail Marathon and Half, part of the Ultimate Endurance Race Series, is a challenging mountain trail race held annually at Timpanogos Park in Orem, Utah. Scheduled for May 17, 2025, the event features a full marathon with 5,883 feet of elevation gain and a half marathon with significant ele..

The Dandelion Dash Trail 5K and Short Family Fun Run is set to take place in Petoskey, Michigan, on May 17, 2025. This inaugural event features a professionally timed 5K trail run and a shorter family fun run, aimed at promoting community engagement and supporting the Petoskey Children's Nature Pres..

Dawson Forest Georgia's Area 51 Trail Races is an exciting running event featuring three challenging race distances: 5K, 10K, and 15K. Set in the scenic Dawson Forest Wildlife Management Area, participants will navigate a mix of forest service roads and single-track trails. The course is well-marked..

The Rock Springs Run 10K and 5K Trail Run is a scenic race held at Rock Springs Run State Reserve in Sorrento, Florida. Participants can choose between a 6.2-mile (10K) or a 3.1-mile (5K) loop course through diverse natural habitats, including pine flatwoods, hardwood hammocks, and creek swamps. The..