Ultramarathons in United States (Midwest)

Nighttime endurance laps on an illuminated dirt horse track at Harrison County Fairgrounds with continuous chip timing and flexible distance

Hilly 50KM double-loop trail race on runnable gravel and mixed tracks, seven major climbs per loop, river valley ascents, and rugged scenic terrain

Team relay journey covering 50, 100, or 200 miles on fully paved White Pine Trail, featuring woodlands, countryside, lakeside views, and historic rail route

Forested singletrack, open ski hill ascents, and technical descents over five 10k laps at Cannonsburg Ski Area

Singletrack course along the North Country Trail with rolling bluffs, Lake Michigan views, coastal forests, wilderness lakes, and the Sturgeon Bay Trail.

100-mile road race featuring self-support requirements, minimal aid, and extreme endurance demands across a remote course with limited replenishment points

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

Scenic 5K campus loop at Butler University with repeated laps, historic Hinkle Fieldhouse, Tent Village, showers, and on-site refreshments

Single-track loops around Caesar Creek Lake with rolling terrain, moderate elevation changes, multiple marked trails, and typically high summer temperatures

Rugged Keweenaw Peninsula trails with rocky, forested sections, demanding terrain, and remote Upper Peninsula scenery.

Half-mile pine forest loop in Lowell Park, continuous 6, 12, or 24-hour format with self-supported setup and solo or team options

Scenic Illinois River trails with 100 mile, 100k, and 50k options; roughly 23,500 feet of elevation gain and rustic woodland terrain at Camp Wokanda

Challenging looped course through wooded ridges and river valley along Illinois River Bluff Trail, with significant elevation gain and summer heat.

Crushed limestone loops circling Miola Lake with well-stocked aid stations in a low-key, supportive ultramarathon setting

Shaded crushed gravel loop along the Big Piney River, 6-mile circuit with a notable hill, festive summer setting near Old Route 66

4.167-mile trail loop by day, paved park road by night, hourly starts, no outside aid, last runner standing format inspired by Laz Lake

Moderately challenging loops through Lake Macbride State Park with crushed limestone paths, technical snowmobile trails, diverse terrain, and scenic lake views.

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

Shaded woodlands loop on mixed surfaces in Route 66 State Park; flat, fast course with summer heat, night running, and main aid station support