Summer ultramarathons in Missouri, United States

Shaded crushed gravel loop along the Big Piney River, 6-mile circuit with a notable hill, festive summer setting near Old Route 66

Shaded woodlands loop on mixed surfaces in Route 66 State Park; flat, fast course with summer heat, night running, and main aid station support

Scenic loop trail in Shreveport with a repeated circuit format, approachable terrain, and a mental-and-physical test of patience and pacing.

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

Out-and-back 10-mile loop on mostly flat gravel paths with gentle rolling hills and tree-lined country scenery, supporting shoes for local students

Rugged relay course on the Ozark Trail with rolling hardwood forests, bluff overlooks, technical mountain biking, and paddling on spring-fed creeks

Trail-based loop format on a scenic 5K circuit, with hourly aid, central base support, and a focus on pacing, recovery, and consistency.

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

82-mile team relay crossing scenic Missouri trails, rolling countryside, and historic landmarks

Overnight ultramarathon on dirt and rocky single-track trails through open fields and woods at Indian Camp Creek, multiple distance options