Backyard ultramarathons in Missouri, United States

Paved 4-mile loop at Mill Creek Park, scenic starts and finishes by J.C. Nichols Memorial Fountain, well-stocked aid station each lap

Rural chip-and-seal highway loop with rolling hills, open to traffic, 250 feet elevation gain per lap, progressively shortening time limits

Alternating dirt and paved 4.167-mile loops with timed laps, creek crossings, fields, cedar groves, rural countryside, and changing fall scenery

Scenic 4-mile loop around a golf course, hourly restarts, last-person-standing format with a 30-hour maximum

Scenic loop course through tranquil woodlands, mixing paved and gravel trails on Hawk Ridge, Fox Run, and Owl Creek with rolling hills and moderate climbs.