50K ultramarathons in United States (West Coast) in 2026

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

Scenic Sammamish River Trail out-and-back with steep early descent, bridge crossing, fields at 60 Acres Park, and multiple parkway turns

Technical single track climbs on Bells Mountain, stream crossings, waterfalls, and views of Mt. St. Helens along the Tarbell Trail to Moulton Falls Arch Bridge.

Scenic waterfront course from Magnolia to Lincoln Park, blending trails and urban routes with views of Elliott Bay, Myrtle Edwards Park, and city landmarks

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

50-mile out-and-back on the Pacific Crest Trail, shaded forest canopy, soft yet technical terrain, 5,630 feet of elevation gain, mountain views

Challenging 50k course on abandoned logging roads and wildlife trails, ascending three coastal peaks with views across Tillamook Ridge and State Forest.

Challenging 100k course on the Pacific Crest Trail through Siskiyou Mountains, with Mt. Shasta and Cascades vistas highlighting Ashland's terrain

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

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

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

Relatively flat out-and-back rail trail from McCloud with views of Mt. Shasta and excellent footing in a mountain setting

Ridge climbs, northwest forests, 10,200 feet of elevation gain, singletrack trails, and panoramic Mt. Rainier views

Nighttime 50k on historic Cahuilla tribal lands, 7-loop course with single track and dirt road terrain, headlamp required, festive atmosphere

Track-based ultra at Newport High School featuring 24-hour, 12-hour, and 50K distances, with 125 laps marking the 50K finish

Remote Mt. St. Helens loop on rugged Loowit Trail singletrack, with lava and pumice fields, river crossings, blast zone and forest.

Demanding climbs and descents through Marin Headlands, starting near Fort Cronkhite and Rodeo Beach, with Pacific and Golden Gate Bridge views

Loop course from Lake Chabot Marina through East Bay Regional Parks, reaching Skyline Gate, supportive atmosphere, plant-based post-race options

50k and 25k options on smooth and technical trails, forested ridges, significant elevation changes, views of Mt. Baker and Bellingham Bay