October ultramarathons in Wisconsin, United States

Timed loop course on McMiller Trail through Southern Kettle Moraine Forest, with solo or relay options and multiple loop choices

Looped course on Driftless Area bluffs, with rocky climbs, wooded descents, grassy ridge lines, and a steep Broken Rock climb near the finish

Rolling hills and rocky trail segments along an out-and-back route in Wisconsin's Kettle Moraine State Forest, featuring brief road crossings

Scenic trail routes through Black River State Forest, featuring Wildcat Ridge climbs and challenging mounds

50-mile point-to-point road course from Door County peninsula to Sturgeon Bay, featuring shoreline views and vibrant fall foliage

Looped course at Mosquito Hill Nature Center with 400 feet of elevation gain per 3.4 miles and variable race durations amid scenic natural surroundings.

Rugged singletrack trails and rolling bluffs with Mississippi River Valley vistas in Hixon Forest; challenging terrain and notable elevation changes

Rolling terrain through autumn forests on the Ice Age Trail, significant elevation gain, and extended out-and-back routes in Southern Kettle Moraine

Single track and ski trails with short climbs, rugged roots, rocky sections, and pine forest scenery; multiple distance options available