April ultramarathons in United States (Southwest)

Gentle 2-mile trail loop in Bremond, TX with flexible distance options up to 12 hours, featuring distance milestones and a supportive atmosphere

Remote Moab desert trails with Navajo sandstone domes, sandy washes, technical singletrack, exposed rims, and La Sal Mountain views

Dirt single-track trails through Lake Meredith National Recreation Area, featuring 25K, 50K, and 50 mile distances amid West Texas scenery

Scenic lap course through Reedley farmland, orchards, vineyards, and along the Kings River, racing from sunset through moonlit night to dawn

Rocky singletrack ascent up Stairmaster Trail with 890 feet gained in under a mile, followed by slickrock descent and panoramic Moab valley views

50-mile course through scenic and historic American River landscapes, well-stocked aid stations, strong community focus, conservation partnership

Snowshoe-required race on singletrack, doubletrack, and groomed trails near the Nordic Center; sub-8 mile loops with about 500 feet of elevation gain

Double summit course over Mount Diablo with challenging elevation, supporting local park preservation efforts

Custom route choices on varied terrain at McDowell Mountain, point-based scoring with flag and sandbag retrieval, five trails, flexible timed divisions

Rugged 10-mile loop from Redwood Shelter through Cameron Park’s rolling hills, with demanding ups and downs on scenic Central Texas trails.

Rugged 50K in Marion Sansom Park: natural unpaved trails, rocky footing, rolling elevation, steep climbs, and technical river and waterfall sections.

Transverse Range ridgeline route from Montecito to Nojoqui Falls, 59 miles of paved roads, technical single-track, and fire roads with frequent elevation shifts

105-mile point-to-point on remote singletrack through southern Arizona, with 12,500+ ft of climbing across desert, oak woodlands, and mountain terrain.

Deceptively tough 50km two-loop course on Hill Country trails, with stream crossings, pine-lined paths, wildflowers, and steady climbing.

Flowing singletrack, mesa climbs, red slickrock cliffs and buttes, with overlooks above the Colorado River and wide-open desert views.

Private trails at Sylvan Dale Guest Ranch with varied terrain and picturesque views, featuring individual and relay formats with on-site aid station support.

Soft singletrack through pine forests and lake views, with a 50K course featuring 2,600 feet of elevation gain on west-side loops and east out-and-back sections

Flat, fast 50-mile course on crushed rock and forested trails in Brazos Bend State Park, scenic route with birdlife and American alligators