Summer ultramarathons in United States

Three-day, 75-mile stage race on the SRKG Greenway with 15,500 feet of elevation gain, technical single-track, steep climbs, and lakeside scenery

Forgiving running surface and gentle elevation changes in a small town South Dakota setting, with 50 and 100-mile ultramarathon distances.

200-mile point-to-point course from Fort Collins to Steamboat Springs with mountain passes, open spaces, and road sections

Nighttime out-and-back courses starting and finishing at Homedale Middle School, with a mix of paved and dirt roads through scenic countryside

Rugged dirt trails with rolling terrain through Land Heritage Institute, technical night running under the stars, single and wide track routes

Three-day team adventure across Montana’s rugged backcountry, unmarked relay exchange points, shifting wild terrain, and full self-support logistics

24-hour ultra on a 400-meter stadium track at Lakeville South High School, centered on repeated laps, endurance, and pacing.

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

Flat 3.75-mile paved loop at Cooper River Park with Philadelphia skyline and waterfront views, easy pit access, and some rubber track sections.

54K route on the 12-mile DORBA trail at Cedar Hill State Park, moderate to challenging terrain through forests and grasslands by Joe Pool Lake

Flat, shaded one-mile loops on palm- and oak-lined trails between river and ocean, nontechnical terrain showcasing old Florida hammock.

Mostly rail trail course connecting Belleville, WI to Orangeville, IL, passing through small towns and scenic stretches with frequent aid stations

Figure-eight loops on rugged mountain trails, wildflower fields and dense forests, panoramic coastal views, community gathering at the Mountain Field

Point-to-point 55K on the Waterloo-Pinckney Trail, passing swamps, meadows, lakes, and forests; finishes on a dirt road at Sandhill Crane Vineyards

Paved point-to-point road ultra from Hilo to Waimea, with major early climbing, a long descent, and a tough exposed Saddle Road course

100-mile lollipop-style mountain trail route, 17,700 feet of ascent and descent, varied Mt. Hood terrain, finish beneath the volcanic summit

Remote San Gabriel backcountry route through preserved wilderness, featuring picnic spots, campgrounds, and a demanding 100-mile ultrarunning course

Rugged single track and steep climbs in Green Mountain National Forest, with summit views of Lake Dunmore and over 5000 feet of elevation gain

Remote Alaskan ultramarathon with hard-packed trails, technical ridgelines, significant elevation change, wilderness views, and Chena Hot Springs finish

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