September ultramarathons in Minnesota, United States

Backyard ultra format with a varied loop of gravel, asphalt and trail, hour-by-hour returns, and a sauna-and-swim touch.

95% singletrack on the Superior Hiking Trail, with roots, rocks and relentless climbs through the Sawtooth Mountains above Lake Superior.

Demanding 100-mile and 50-mile point-to-point courses on the Superior Hiking Trail, with rugged, rooty, rocky singletrack above Lake Superior.

Looped course through Fargo and Moorhead parklands, varied terrain, multiple bridge crossings, and extensive aid between laps

Two laps on new 25k trail routes through William O'Brien State Park, starting near the Visitor Center north of Marine on Saint Croix

Walker-exclusive 50 km route on smooth asphalt along the Dakota Rail Trail, flat terrain and natural scenery near Minneapolis/St Paul, starting in Mayer, MN

Last One Standing format on rugged mountain trails, with fall terrain, autumn color, and repeated loops until one remains.