Trail ultramarathons in United States (East)

16.5-mile loops through Finger Lakes National Forest, single-track trails, grassy pastures, dirt and paved roads, 1292 feet elevation gain per loop

Scenic Kennesaw Mountain course passing historic sites, wooded trails, gravel, and asphalt, featuring sunrise and sunset views along an 8-mile out-and-back loop

60k course with 1,600 feet of elevation gain on the varied trails of Red Wing Recreation Area in Lagrangeville, NY

Scenic 1.9-mile loop at Notchview with a 0.2-mile climb, rolling single and double track, open fields, and cross-country ski trails

Looped nighttime miles on runnable single-track dirt trails through cedar and hardwood forests along the Duck River, glowing with reflective markers

Casual-paced ultrarun emphasizing camaraderie, pedestrian-friendly routes, and essential self-supported hydration, with unique aid stops along the course.

Steep switchbacks in lush forests, ski slopes with panoramic vistas, and expansive fields across a 5-mile loop with 810 feet of elevation change

Six-loop 50K on technical, rocky singletrack with roots, foot bridges, over 4,000 feet elevation gain, minimal doubletrack, and frequent aid access

Rugged, moderately difficult out-and-back laps on an unpaved rail trail with 1000 feet elevation change per lap and uneven terrain.

Rugged 100-kilometer course through the wild trails of the Alleghenies, rocky ridges, sparse aid stations, and punishing midsummer heat

Eight out-and-back segments from a central hub, spanning Vero Beach and Sebastian, with tropical waters, jungles, rugged trails, and 22 bridge crossings

Scenic Finger Lakes hills and valleys, swamplands to hilltops, steep descents, gully rim trails, finishing at the culturally significant Great Hill

Historic Starrucca Viaduct start, four 25-mile out-and-back laps on a primarily flat stony rail trail with gradual elevation changes and trestle dips

Approximately 3.4-mile trail loop at Windsor Castle Park with 150 feet of elevation gain per lap, self-aided format, and a relaxed summer atmosphere

1.776-mile loop through historic Putnam Memorial State Park, featuring multiple timed race options in a landscape tied to Revolutionary War history

100-mile Vermont trail race with 17,000 feet of elevation gain, rolling hills, country roads, forested trails, and southern Green Mountains scenery

Point-to-point route from Ellsworth to Eastport across Down East Maine, featuring demanding terrain and views of the region’s distinctive landscapes

Rolling course through Ouachita National Forest on Forest Service Roads, night run under the stars, start at historic Camp Ouachita Girl Scout Camp