Summer ultramarathons in Mississippi, United States

Looped cross-country and single track trails with small hills at Mississippi College Choctaw Trails; intense heat and humidity expected

Ten 5k laps in 24 hours on a repeat course, self-supported through Mississippi summer heat at RunStrong Training Center

11-mile asphalt loops along Ross Barnett Reservoir, minimal shade, mix of rolling hills and flat stretches, hot Mississippi summer conditions