September ultramarathons in United States (West Coast)

Remote Washington Cascades route through Gifford-Pinchot National Forest, deep valleys, wildflower ridges, over 26,000 feet of ascent and descent

Flat 3.1-mile loop on gravel, dirt, grass, and paved surfaces at Kearin Family Farm, with central aid and easy crew access for ultradistance challenges.

Mountain vistas, dirt trails, and rugged climbs at China Peak Mountain Resort; options for 25km, 50km, and 100km distances

Mountain trails through east San Diego County, runnable single-track, National Forest scenery, challenging terrain, 9.5-hour cutoff

Scenic 50K trail course with multiple aid stations, well-maintained paths, and festive post-race refreshments

Timed ultra on a 1-mile loop at Donald Farm, shifting from Warrior Expo crowds by day to a quiet overnight test of persistence.

Mount Diablo course featuring panoramic vistas of the San Francisco Bay Area and surrounding valleys, emphasizing the region’s natural scenery

Trail route through Mendocino Woodlands State Park with forest scenery, tent cabin options, and meals included on Saturday

Shared 29-mile opening through Portland streets, bridges, waterfronts and Forest Park, with a self-navigated option extending beyond 50 miles

Scenic trails through Tilden Regional Park and Wildcat Canyon, shaded oak and eucalyptus groves, open stretches with bay and bridge views, beginner-friendly

Hourly 4-mile trail loops with elimination, continuing until only one runner remains

Single-track trails, steep hills, oak woodlands, open heat-exposed stretches, panoramic views; 50K course suitable for Western States preparation

Rugged point-to-point course from Williams to Ashland, single track and dirt roads, over 20,000 feet of elevation change, Siskiyou Mountains vistas

Olympic Adventure Trail route featuring forested paths, gravel roads, Kelly Ridge traverse, and a Lake Crescent finish inside Olympic National Park.

Pacific Crest Trail routes with South Washington Cascades views, panoramic vistas from Three Corner Rock, Indian Heaven Wilderness, and huckleberry descents

Unmarked, minimally supported 51-mile mountain route from Roslyn over rugged ridges and valleys, 10,000+ feet of climbing, remote forest scenery

Volcanic alpine terrain, panoramic views, challenging 50K loops ascending to Mt. Bachelor’s 9000-foot peak

Demanding 2-mile loop with 320 feet of elevation gain per lap on varied terrain, 24-hour and 12-hour ultramarathon options, open field event hub with full aid

Point-to-point 50k on Pacific Crest Trail singletrack, from South Washington Cascades toward the Columbia Gorge, with climbs, descents, and volcano views