Ozark Trail 100 Mile Endurance Run

Welcome to the 17th Ozark Trail 100 Mile Endurance Run

Starting on Saturday, October 25, 2025, at 6:00 AM, this ultra-marathon takes you through 101 miles of the pristine Ozark Trail, offering a challenging route with approximately 12,000 feet of elevation gain.

Course Overview

Your adventure unfolds along a continuous single-track trail where smooth paths mix with technical challenges, crossing crystal-clear streams and navigating through the remote wilderness of Mark Twain National Forest.

What Makes This Race Special?

• 17 years of ultra-running tradition
• 13 fully-stocked aid stations
• Genuine community atmosphere
• A coveted belt buckle awarded to finishers

Race Day Essentials

• Mandatory pre-race briefing on October 24
• Crew access points at key locations
• Drop bag service at aid stations
• Pacer options starting at Brooks Creek (mile 40)
• Base camp at Bass River Resort

Registration Information

Ensure your spot in this legendary race by registering before the deadline on October 1, 2025. Entry fees are non-refundable and non-transferable.

Limited entries are available to preserve the quality and integrity of the trail experience. Prepare for an unforgettable journey where determination meets nature's beauty!

Join Us!

Experience where friendships are forged over shared miles, and every finish is a triumph celebrated by our trail running family. Register now for your chance to test your limits against 101 miles of the Midwest's finest single track.