March ultramarathons in Missouri, United States

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.

Rugged out-and-back trail with steep climbs, creek crossings, briars, tall grass, and up to 4800 feet of elevation gain in Little Sac Woods Conservation Area

Nighttime ultramarathon on a 3-mile paved loop in St. Robert, continuous running until sunrise, heated indoor aid station available

Flat, paved loop course around Arena Park with continuous lapped format, supporting the Howard L. Aslinger Memorial Scholarship

50K on a 10-mile loop at Three Creeks: 80% singletrack, 20% jeep/gravel road, frequent creek crossings, and rolling terrain with ~950 ft climbing per lap

Out-and-back loops on Chubb Trail with gravel and dirt paths, mile-long climbs, rolling hills, river views, wildlife sightings, and railroad crossings