Leaky Hourglass Ultra

The Frisco Railroad Run is an annual running event held on the scenic Frisco Highline Trail in Willard, Missouri. Participants can choose from various race distances, including a 50-mile ultramarathon, 50K, marathon, half marathon, and 8K. The course is a flat, USATF-certified out-and-back trail, of..

The OVERNIGHT Rat Race - UNSANCTIONED is an extreme endurance event taking place in Springfield, MO, designed for seasoned runners seeking a unique challenge. Participants can choose between a 4-hour or 6-hour option, navigating an unmarked course through the city while hitting various points of int..

The 4 Fore 30 Infinity Backyard Ultra is an exciting endurance running event taking place in Macks Creek, MO. Celebrating its 8th year, this unique race follows the format of Big's Backyard Ultra, where participants must complete a 4.1667-mile loop within one hour, with the challenge continuing unti..

The Last Chance Ultra is an exciting running event taking place on December 6-7, 2025, in Springfield, MO. This fourth annual race offers participants the opportunity to complete various distances, including a 100 Miler, 50 Miler, 50K, and a 10 Miler. It serves as a perfect way to log those final mi..

The Bleak Midwinter Endurance Run is an annual timed endurance event held at the Sac River Mountain Bike Trails in Springfield, MO. Participants can choose from four different timed options: 12, 6, 3, and 1 hour runs, all on a 4.15-mile loop trail featuring moderately technical terrain. The event em..

The Hard Times Trail Run, held at Little Sac Woods Conservation Area in Willard, MO, features a challenging 8-mile loop course with over 1,000 feet of elevation gain. Participants can choose from three distances: 8 miles, 25K, and 50K, with the latter two running laps in alternating directions. The..