Ozark Trail 100 Mile Endurance Run

Ozark Trail 100 Mile Endurance Run takes place in Steelville, Missouri, on October 31, 2026. It offers a single format: a 100-mile trail run on the Ozark Trail, starting at 6:00 AM. With only one distance on the program, the whole event is built around runners committed to going the full way through the day, the night and into the next morning.

A point-to-point style effort on singletrack means you should expect rocks, roots and constant small climbs rather than smooth footing, so hiking strength matters as much as running speed. This is a race for runners who already have at least one 50-mile or 100K finish behind them. Plan on a 20-week build with back-to-back long runs on the weekends, some overnight training to rehearse headlamp running, and a crew and drop-bag strategy worked out well before race week.