September ultramarathons in Wisconsin, United States

One-mile loop on a wide, gently rolling path of gravel, grass, and dirt with 72 feet of elevation gain per loop, illuminated for nighttime laps.

Demanding 50k multi-loop course on Rib Mountain, with technical singletrack, steep climbs and descents, and 7,000+ feet of elevation gain.

Customizable 6 or 24-hour looped run or walk with flexible distance goals

Winding route from Greenbush recreation area through scenic Kettles landscapes, finishing at the Fuzzy Pig

Out-and-back route between Belleville Community Park and Dot's Tavern, featuring 4.2-mile legs, multiple distance options, and a last person standing format

136-mile route on the Ice Age State Trail through the Southern Unit of Kettle Moraine, featuring wide paths, single track, bike paths, and road connectors

Challenging last-person-standing ultramarathon for women on hilly Driftless Area loops with at least 250 feet of gain per 1–1.25 mile lap