January ultramarathons in United States (Northeast)

Scenic 6.2-mile trail loop at Bradley Palmer State Park, repeatable up to five times, on beautiful park trails with a relaxed, non-competitive atmosphere.

Looped course with flexible lap totals and early start option, welcoming atmosphere to begin the year with fellow runners

Classic early-season New England trail ultra with deep regional roots and longstanding community tradition.

6.5-mile loop in Vermont's Green Mountains with 1200 feet of elevation gain, expansive views, and variable winter conditions

Winter trail loops in Chenango Valley State Park, festive atmosphere, support at start/finish, snowshoe and running options alongside the Pond Festival

Winter trail runs and snowshoe race on park trails with a shared start and finish area, held alongside festival activities and hockey games

Out-and-back 7.5-mile loops at Dryden Lake Park, 100-mile or 30-hour formats, basic aid, winter conditions, low-key community atmosphere

Annual 50k honoring Theodore 'Ted' Corbitt and his legacy in American long-distance running

Looped trail course through South Mountain Reservation, 3-hour and 6-hour timed options, starting and finishing at Turtleback Rock Picnic Area