100mi ultramarathons in Arkansas, United States

Continuous 5K loop format with 50 mile, 100K, and 100 mile options, focused on steady pacing, consistency, and fully stocked lap aid.

Scenic Ouachita Mountains route featuring forest roads, rugged jeep trails, and 12,000 feet of elevation across runnable, deceptively tough hills

Point-to-point course on the Ozark Highlands Trail with significant ascents and steep climbs through remote Arkansas wilderness

Paved out-and-back 4.167-mile loops along 8 Mile Creek Trail, no street crossings, 12 and 24-hour last participant standing format in Paragould, Arkansas

Overnight ultra on a flat looped course, with aid every lap, after-dark atmosphere, and a challenge shaped by hours, rhythm, and the night

Rugged mountain trails and steep ascents through the scenic Sylamore Ranger District, challenging terrain in the Ozark National Forest

Rocky, rolling hills and ridge lines overlooking Lake Ouachita, with demanding single-track through Ouachita National Forest on an IMBA Epic Trail