This classic ultra marathon launched in 1996 serves as the second leg in the Midwest Grand Slam of Ultrarunning Series and qualifies runners for the Western States 100. Beyond the signature 100-mile and 100k distances, the event offers a 38-mile run, 50k, and 100-mile team relay option.

The course runs almost entirely on trails, following the Ice Age National Scenic Trail for 65 miles before deviating near the Nordic Trails at the start/finish area and around the Scuppernong aid station. Runners tackle the distance via two different out-and-back sections, creating a varied experience across the 100 miles.

Eighty percent of the route winds through wooded terrain, with the remainder crossing prairie and marsh areas. Expect a roller coaster of hills scattered with rocks and roots, though other sections offer gently rolling terrain with smoother surfaces. The pine sections provide that coveted soft bed of pine needles underfoot. While individual climbs aren’t particularly long or steep, the cumulative 8,800 feet of elevation gain across 100 miles becomes a significant factor as the miles accumulate.

The Midwest Grand Slam attracts runners seeking to complete four of the region’s premier 100-mile trail races, with “Super Slammers” finishing all five events. As a Western States qualifier, Kettle Moraine draws serious ultrarunners looking to punch their ticket to the sport’s most prestigious event while experiencing one of the Midwest’s most established trail ultras.