November ultramarathons in United States (New England)

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

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

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

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

Hourly 4.1666-mile loop in Winchendon, backyard ultra format, relaxed camping and communal atmosphere with aid stations and bonfires

Figure-8 trail race along Bold Coast cliffs and inland terrain; slippery roots, rocks, shifting bog bridges, exposed nails, and repeat segments each lap

6-hour ultramarathon on a 5K loop at Wright Locke Farm, featuring rocky terrain, rolling hills, and goats along the course

Demanding, hilly 50K on paved and dirt roads through rural Roxbury, with a longer out-and-back and repeated Hemlock Loop circuits.

Rolling paved and dirt roads in Connecticut’s Northwest Hills, with hilly terrain, Judds Bridge out-and-back, and New England autumn scenery.

Last-person-standing format on Mount Ascutney: hourly steep laps with 1,209 ft of climbing, broad views, and possible late-season cold, snow, and ice.

400-minute trail loop challenge with rolling hills, rocky and root-laden sections, grassy stretches, and roughly 275 feet of elevation gain per loop