Intermediate ultramarathons in United States (New England)

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

10-mile singletrack loop through Noon Hill Reservation, diverse terrain and minimal road crossings, near Boston yet set in immersive woodlands

Out-and-back route through the White Mountains, summiting three 4,000-foot peaks and covering up to 108 miles with 29,000 feet of elevation gain

Mountainous 50K route across Snow's Mountain, East Osceola, Osceola, and Tecumseh, 7,700 feet of elevation gain, scenic trails, multiple aid stations

Mostly flat 50K and 50-mile courses on scenic New England trails at DCR Great Brook Farm State Park, featuring roots, rocks, and fall foliage.

Double-loop figure-eight 50K in Pittsfield State Forest, with substantial climbing, fast descents, Taconic Crest Trail, and sweeping vistas.

56-mile north-to-south route on the Farmington Canal Heritage Trail, with flat terrain and rural, suburban, and urban sections.

Three-loop 50K course featuring rugged singletrack, multiple climbs over Cobble Mountain, more than 7,000 feet of elevation gain, and scenic park views.

50-mile route along the Kilkenny Ridge Trail through remote White Mountain National Forest, featuring 15,000 feet of ascent and summits like Cabot and Waumbek

Challenging 50-mile course on scenic trails around Mount Ascutney, featuring rugged terrain and a welcoming, inclusive event atmosphere

31 miles of Connecticut roads with stops at five donut shops, a course featuring hot pavement, challenging back roads, and a 7-hour cutoff

Historic Midstate Trail routes through mountains, fields, and river crossings, with border crossings and New England autumn scenery

Historic rail trail through New Hampshire forests, autumn foliage tunnels, weathered railway remnants, and night miles steeped in lore and legend

Rugged 50-mile route over Bradbury and Tryon Mountains, technical singletrack, demanding hills, autumn foliage, strict cutoffs, required headlamps

Double and single track routes through Willowdale State Forest, rugged varied terrain, part of the North Shore Trail Series

Rugged technical trails with roots, rocks, steep elevation changes, and intermittent Boston skyline views in classic New England woodland

Twisty, rocky 50K and 50-mile routes at Blue Hills Reservation, starting and finishing at Houghton’s Pond; challenging navigation through rugged terrain.

Fast, mostly flat paved loops around Lake Waramaug, with rolling rhythm, wide water views, and a classic New England ultra atmosphere.

Rugged Connecticut course with steep ascents, rocky Regicides Trail, summit climbs, and challenging blue blazes from West Rock Playground to Prospect