November ultramarathons in United States (East)

Out-and-back single track course through remote, rugged forest, starting and finishing at Point Overlook in Green Ridge State Forest, western Maryland.

Rolling single track and meandering farm trails through Gurski Farm and Williams Park, featuring scenic views and varied country terrain

Four-loop 50K through the FATS trail network, with shaded singletrack, rolling runnable terrain, and a few rocks and roots.

Inaugural fall ultramarathon on the trails of White Barn Farm, supporting conservation of farm woods and local trails

Southern Appalachian foothills and Coldwater Mountain singletrack, with flowing trail sections and technical, rock-strewn terrain.

Low elevation 14.35-mile single-track loop course along Wolf River, 7 laps for 100 miles, 34-hour limit, popular Western States qualifier

4.167-mile mixed-terrain loop through private woodlands, Barn Creek crossing, and Colditz Cove State Natural Area, under 300 feet elevation gain, backyard ultra

Relentless paved-loop ultra in Riverside Park, with each lap returning to the gazebo and caboose; a simple, repetitive test of endurance.

Challenging 50-mile ultra on historic singletrack with 10,000 feet of elevation gain, rugged terrain, and occasional road crossings through scenic heritage land

USATF-certified 1.38-mile loop in Croatan National Forest featuring crushed gravel paths, salt marshes, minimal elevation, and scenic wildlife views

Largely flat 4-mile loops on the New Boston Rail Trail by the Piscataquog River and Hillsborough fairgrounds

Multi-lap 50K along wooded trails and parkland on the Noland Trail, featuring serene scenery and sections at the start and end of each lap.

50 miles on the Seneca Greenway and Muddy Branch trails, with rolling forested singletrack, small stream crossings, and occasional muddy footing.

Ten-mile looped course on the CCC Multi-Use Trail with rolling terrain, 650 feet elevation gain per loop, and two aid stations each lap

Rugged single-track course with steep climbs and descents through Soddy Creek, Possum Creek, and Rock Creek; minimal aid stations; navigation required

Rugged 50K in Raccoon Creek State Park: mostly singletrack with rocks, roots, and steep hills in a wooded state park setting.

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

Rugged 15.5-mile loops encircling a chimpanzee sanctuary, technical singletrack, pine-straw hills, ravines, 1,050 feet elevation change per loop