Bleak Midwinter Endurance Run
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Bleak Midwinter Endurance Run
The Bleak Midwinter Endurance Run is a timed trail event at Sac River Mountain Bike Trails in Springfield, MO. The course is a roughly 4.15 mile loop and the event offers the following timed options:
- 12 hour run
- 6 hour run
- 3 hour run
- 1 hour run
The loop is moderately technical single-track with rocks and roots, hardwood forests, and small glades. The route is marked with permanent signs plus temporary directional signs, flags, and ribbons. Runners will experience about 400 feet of elevation gain per lap. All runners start in the same direction for the first lap; after that, runners may run the loop in either direction but must check in between each lap. Only completed laps recorded at check in count toward a runner’s total and all laps must be completed before the end of the timed event.
A Base Camp Pavilion aid station at the start/finish provides food, drinks, warmth, and support. Space is available for crews to set up tents; porta potties and first aid will be located at the pavilion. Packet pickup takes place at Sac River Mountain Bike Trails on the event date.
Registration fees are $95 for the 12 hour, $75 for the 6 hour, $55 for the 3 hour, and $35 for the 1 hour. Registration closes January 17, 2027. The event is held rain, snow, or shine; cancellation is limited to safety or factors beyond the organizers control and no refunds are available. Dogs are allowed on leash; cats are not permitted. All proceeds support Headington Hill Classical Academy, a 501c3 nonprofit, to assist students with books, uniforms, and tuition. Visit the organization's website for the most recent information.
