50K ultramarathons in United States (Southwest)

Rocky out-and-back course through Bear Valley and Lake Spaulding, steep ascents on Signal Peak loop, challenging terrain with rugged segments

Technical singletrack and rolling fire roads through shaded oak groves and exposed hillsides, with sweeping Bay Area views and a challenging elevation profile

Night race on runnable jeep roads and technical terrain at Twin Mountains Offroad Park, with frequent loops and hot, humid conditions.

Trail route through towering coastal redwoods, stream canyons, meadows, pine and oak forests, ridges, and San Lorenzo river crossings

Night trail running on flat, fast routes through Usery Mountain Regional Park, featuring Chain Fruit, Lost Sheep, Channel, and Blevins Trails

Scenic nighttime route along Tulsa’s RiverParks asphalt trails, illuminated Arkansas River crossings, urban landmarks, and riverside views

Repeated 10K pine-forest circuit at Rocky Hill Ranch, with singletrack, rolling hills, intermittent shade, and long-format options from 50K to 200K.

Alpine Loop course through historic mining ghost towns, reaching 12,930 feet at California Pass and descending to Silverton, total gain 4,400 feet

Steep ascents and dramatic descents along the Harding Truck Trail in the Santa Ana Mountains, featuring expansive vistas and a 50K distance.

Mountain trails from John L Harvey Stadium to Snow Valley Peak and Tahoe Rim Trail, featuring Ash Canyon climbs, remote aid stations, and Ultra Lounge finish

Challenging 50K ultra crossing all four Aspen Snowmass mountains on singletrack and dirt roads, featuring demanding elevation and scenic mountain terrain.

Point-to-point mountain course along the Wasatch Front, featuring high alpine ridgelines, remote backcountry, wild meadows, and rocky, exposed sections

Night-time ultramarathon on rugged hilly ranch trails in Gilmer, Texas, featuring dirt singletrack, creek crossings, varied elevation, and self-supported racing

After-dark 50K on rooty dirt singletrack through Tyler State Park’s East Texas pines, with rolling hills, narrow wooded trails, and 900 ft gain per loop

Looped 50K course through Tahoe National Forest, mixing singletrack and fire roads, rocky summit climbs, 6000–8000 ft elevation, 3000 ft gain

Nighttime trail run across Guadalupe River State Park’s grasslands and woodlands, featuring star-lit paths and diverse natural scenery

Rugged, heat-defined 24-hour and 48-hour ultra with smart pacing, cooler nighttime hours, and a laid-back, communal atmosphere

11,400 feet of elevation gain across the Wasatch Mountains, summiting Snowbird, Baldy, and Hidden Peak amid alpine vistas

Northern Sierra Nevada trails with steep elevation gains, raw terrain, and views of mountain lakes, granite ridges, and dense forests

50-mile route from Bear Creek Regional Park through High Drive, Cheyenne Canon, and notable landmarks including Seven Bridges and Helen Hunt Falls