March ultramarathons in Kansas, United States

4 miles every 4 hours for 48 hours, solo or team participation options

Rugged 2.15-mile forest loop with rocks, roots, wooden walkways, and over 250 feet of elevation gain per lap, finishing at Burnett’s Mound summit.

Scenic six-mile crushed limestone loop around Miola Lake with up to 12 hours on course

24-hour run with festive atmosphere, food and drinks, special belt buckle for full duration finishers

Flat, crushed limestone rails-to-trails course from Ottawa through small towns, with stretches of asphalt and frequent aid stations