Trail Running calendar near Flat Branch 2025-2026

The Ultra Sweaty Santa is an annual endurance running event held in Devils Elbow, Missouri, celebrating Christmas in July with a 6-hour race on a shaded 6-mile crushed gravel loop alongside the Big Piney River near Old Route 66. Participants can run for 30 minutes, 3 hours, or the full 6 hours, with..

Bad Dawg Ultra is an endurance running event held annually in Waynesville, Missouri, featuring multiple race distances including 100 miles, 100k, 50 miles, 50k, and a 12-mile run/ruck. The course is a 10-mile out-and-back loop with rolling Ozark hills and flat gravel paths lined with trees, offering..

The Frog Hill Half Marathon, held in Waynesville, Missouri, offers a family-friendly running event featuring a half marathon, 10k, and 5k races, plus a unique Frog Hill Challenge. The courses are chip-timed and mostly flat, with an out-and-back route that showcases scenic views along the Roubidoux R..

Rock Bridge Revenge is a trail running event held at Rock Bridge State Park in Columbia, Missouri. It offers two distances: a 25K and a 50K, with the 50K consisting of two loops of the 25K course. The course features 100% single-track trails with varied terrain and creek crossings, including the Dev..

The Lion King Backyard Ultra is an ultramarathon held at Lions Club Park in Rolla, Missouri. This unique race features a 4.167-mile loop that runners must complete every hour, with the course transitioning from a scenic dirt trail through mature forests and cedar groves by day to a flat, paved trail..

Tom Sawyer's Trial by Trail is a challenging 10K trail race held in Hannibal, Missouri, at the scenic Sodalis Nature Preserve. The course features a mix of technical single-track trails, double-wide dirt paths, and paved walking trails, with a demanding 900 feet of elevation gain and two significant..

The 4 Fore 30 Infinity Backyard Ultra is an endurance running event held in Macks Creek, Missouri. Following the Big's Backyard Ultra format, runners complete a 4.1667-mile (6.7 km) loop every hour, starting at 7:00 AM, with each loop beginning precisely on the hour. Participants must finish each lo..

Iron Heart is a multi-distance running event held in St. James, Missouri, offering a wide range of race options including 5K, 10K, 15K, 20K, 5M, 10M, 15M, 20M, 50K, 50M, 100K, and 100M distances. The event features both shorter and ultra-distance races, catering to runners of various levels.The cour..

The Flat Branch Ultra is a 50K trail running event held annually in Columbia, Missouri, typically on the third Saturday in February. The race starts and finishes at Martin Luther King Jr. Memorial Park and features a scenic rails-to-trails course along the Missouri River, passing beneath towering bl..

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..