12hr ultramarathons in United States (Pacific North West)

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

Non-technical 2.6-mile gravel loop around Lake Padden with 150 feet of elevation gain, winding through classic Pacific Northwest forest scenery.

1-mile loop on hard packed dirt, grass, gravel, and asphalt in Bush’s Pasture Park, gentle terrain with central aid station and accessible crew area

Scenic 2-mile loop featuring flat beachside paths, demanding forested single-track climbs, Puget Sound views, and local wildlife sightings

Scenic 5K loop through ancient forests and along Deep Lake, mix of wide trails and single track, about 100 feet elevation gain per loop

Nighttime loops on a 1.58-mile dirt and wood chip trail, with options for 50K or 24-hour distances, self-supported format, running or rucking

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.

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

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

Rugged Mount Bachelor alpine trails with steep climbs, high-elevation terrain from 7,280 to 9,027 feet, runnable lower sections, and festive aid stations.

Mixed trails and pavement loop, cultural celebrations, and options from 12 to 48 hours with finisher medals and belt buckles for milestone distances

3.6-mile forested loop around Suttle Lake with 110 feet of elevation gain, soft trails, some roots, non-technical terrain, and fall scenery

Scenic Sound views, rolling trails, challenging stairs, and a looped course with twelve-hour run options

Winter Solstice laps on a fatass-style course, self-paced on trail terrain with on-site nutrition support

Twisting singletrack loops through Olympia’s L.B.A. forest park, 200 feet of climb per 4 miles, technical terrain, lush ferns and moss-covered trails

Flat, scenic dirt trail loop at Eagle Island State Park near Boise, Idaho

Groomed 3.2-mile dirt loop around Green Lake, Seattle; 12-hour timed format with flexible afternoon start options

Pacific Northwest forest loops on wide, rolling trails with 12, 24, and 48-hour endurance formats at Port Gamble Trails

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