Race Information

Welcome to the 28th running of the Ouachita Trail 50 Endurance Run!

The OT50 was started by a group of early Arkansas ultra runners who came together, drew from their various ultra race experiences, and committed to putting on a quality fifty miler in Arkansas. As the oldest enduring Arkansas Ultra Running Association event, that intent lives on. The 50 mile and 50 km runs feature a picturesque climb over Pinnacle Mountain followed by an out-and-back traversing the rolling hills along the north shore of beautiful Lake Maumelle. Get ready for scenic, rocky, single-track as you tour Pinnacle Mountain State Park and the eastern part of the 222 mile Ouachita National Recreation Trail. Custom finisher awards and plenty of post-face food will greet you at the finish.

The 50 mile event this year has been selected as the 2018 RRCA Southern Region Ultra Championship.

  Online Registration

Print and mail entry form

Google Race Map Use this map on your phone to get turn-by-turn driving directions to start or to any aid station. While running, see blue dot move along course. (May have to download Google Maps App.)


Race History

New or Travelling to the Natural State?
Check out the Arkansas Dept. of Parks & Tourism


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