The Bleak Midwinter Endurance Run, set for January 24, 2026, in Springfield, MO, challenges runners with a unique timed endurance format on the scenic Sac River Mountain Bike Trails. Participants choose from 12-hour, 6-hour, 3-hour, and 1-hour options, aiming to complete as many laps as possible within their chosen timeframe. This event provides a perfect opportunity to test winter grit against the elements and personal limits.

The course is a moderately technical 4.15-ish mile single-track loop, winding through hardwood forests and small glades, offering approximately 400 feet of elevation gain per lap, featuring plenty of rocks and roots to keep things interesting. Runners begin each event in a counterclockwise direction but are then free to alternate directions after their first completed lap. A single, fully stocked "Base Camp Pavilion Aid Station" at the start/finish line ensures consistent access to food, drinks, warmth, and support throughout your run. Crews are welcome to set up tents, and port-a-potties and first aid services are readily available.

Known for its welcoming and supportive atmosphere, the Bleak Midwinter Endurance Run promises a simple yet enjoyable experience with "great support, lots of food, and fun swag." Runners can look forward to earning custom event swag, with special awards for those achieving 50K (8 laps) and 50M (12 laps) milestones, and the memorable "Crow on a Stick!" Typical race day conditions in late January present highs around 45F and lows around 24F, with an 8% chance of precipitation, and the race embraces the elements, taking place "rain, snow, or shine."