March ultramarathons in United States

50K, 50-mile, and 100-mile trail races on gently rolling singletrack and logging road loops through Mississippi pine woods.

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.

4 miles every 4 hours for 48 hours, solo or team participation options

Rugged 2.15-mile forest loop with rocks, roots, wooden walkways, and over 250 feet of elevation gain per lap, finishing at Burnett’s Mound summit.

50-mile trail event in the South Mountain area, with a welcoming, community-driven atmosphere and local trail running and hiking focus

Single-loop trail run through the Croom Tract, following the Withlacoochee River into remote forest with varied terrain and tranquil surroundings

Fairly flat 1.25-mile park loop with frequent finish area passes, ample amenities, and a spectator-friendly setting

Runnable forest loops along Lake Martin, with roots, scattered granite, and 3,000+ feet of climbing per loop.

Technical, winding 74-mile route along the Suwannee River on the Florida Trail, minimal elevation gain, scenic remote landscapes, symbolic railroad spike

Woodland trails winding through upland hardwood forest, cypress and tupelo stands beside tranquil Lake Bistineau

Flat, fast oval track loops in cool conditions with official record certification, frequent aid stations, and a competitive, fully-supported atmosphere

Technical loop through Table Rock State Park with rugged trails, sustained elevation, and scenic foothills views.

Challenging desert course through Antelope Canyon mesas and secluded slot canyons, with varied terrain, sweeping vistas, and striking rock formations

Trail race tour of Morrow Mountain State Park featuring 32 miles of challenging terrain, three peak ascents, and scenic Uwharrie Mountain views.

Point-to-point route from SR-18 and Pine Valley Road to Ivins Unity Park, with trail sections and scenic paved road through southern Utah.

Historic Texas trail run along Lake Texoma, featuring rugged terrain, scenic views, and multiple distance options including half marathon, marathon, and 50K

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

Flat, lap-based ultramarathon with 5K loops on scenic waterfront trails in Daniel Stowe Botanical Garden, just outside Charlotte

Cohutta Wilderness routes with gravel starts, challenging Pinhoti 2 climbs, Bear Creek overlooks, Barnes Creek Falls, and up to 4400 feet of elevation gain