April ultramarathons in United States (West Coast)

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

Six laps on scenic single-track trails through dense woods, frequent stream crossings, wildlife sightings, and approximately 566 feet of elevation change per c

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

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

Double out-and-back course across asphalt, gravel, and dirt trails with over 10,000 feet of gain through Oregon parkland and small-town landscapes

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

Dramatic desert trail race through canyon-like gorges, ancient lake edges and cascading waterfalls in central Washington.

6-hour women's trail race in Walla Walla with vineyards celebration, supporting Trail Sisters

Route featuring Pritchett Peak climb, rolling descents to Lake Sonoma, out-and-back on the original course, and scenic finish at Coyote Sonoma

Out-and-back 50K from Sunrise Trailhead: PCT singletrack, 2,000+ ft drop through Oriflamme Canyon, Box Canyon desert and a long climb back.

Scenic 50K out-and-back on Kelly Ridge, between Olympic National Park and the Strait of Juan de Fuca, with ridge-top Pacific Northwest terrain.

Constant elevation changes over stony dirt paths, rocky sections, and single-track trails with minimal pavement and views of the lake

40-mile route on Peterson Ridge and Metolius-Windigo trails, with smooth singletrack, wooded surroundings, and open Central Oregon scenery

Rugged ascent from Calistoga's Palisades Trail to Mount St. Helena, technical trails, Robert Louis Stevenson State Park, panoramic views, signature Maze feature

Looped course at Cesar Chavez Academy in south Corona foothills, with options for 1/4 or 1-mile loops and scenic day and night views

Challenging trails and remote routes across Sierra Azul Open Space Preserve, featuring scenic vistas in the shadow of Mt. Umunhum

Rugged single track and gravel roads through Capitol Forest, scenic ascent to Capitol Peak, expansive vistas, and a demanding mix of climbs and descents

Rolling trails and steep stairs with scenic Sound views, festive atmosphere, handmade bibs, and whimsical prizes in a multi-hour lap format