Trail ultramarathons in Wisconsin, United States

Tough and unpredictable trail course with a mix of out-and-back segments and loops on mostly clockwise routes at Devil's Lake

Scenic Wisconsin Northwoods trails with rolling hills, lush forests, and a surprise ultra distance revealed at the turnaround aid station

Mostly rail trail course connecting Belleville, WI to Orangeville, IL, passing through small towns and scenic stretches with frequent aid stations

Rugged singletrack through glacial landscapes, frequent hills, boardwalk crossings, and remote Northwoods scenery

Historic Blackhawk Ski Club loop with 367 feet of gain per 2.25-mile lap, 50-foot pines, spring pool, rope swing, and climb beneath the ski jump

Rugged Ice Age Trail route through Chequamegon-Nicolet National Forest, featuring glacial landscapes, tranquil forests, and open prairies

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

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