Ozark Trail 100 Mile Endurance Run

OZARK TRAIL 100 MILE ENDURANCE RUN

Where Autumn's Wild Beauty Meets Epic Adventure - Year 18 "My favorite 100 that I've done. Beautiful, challenging course. Detailed organization. Friendly, helpful volunteers. One sick buckle. Highly recommend. 5 outta 5 stars." — A Trail-Tested Finisher Welcome to the 18th running of one of the Midwest's most storied ultra-running adventures, where 101 miles of pristine Ozark Trail beckon through the ancient hollows and ridges of Mark Twain National Forest. This isn't just a race—it's a journey through Missouri's most breathtaking autumn landscapes, where every mile tells a story and every finisher adds to a legacy nearly two decades in the making.

2026 Missouri RRCA State Ultra Championship Race

The Ozark Trail 100 Mile Endurance Run has been chosen as the 2026 Missouri RRCA State Ultra Championship!

Course Overview

Your century-plus journey unfolds along nearly continuous single-track trail, where smooth dirt paths intermingle with technical challenges hidden beneath October's vibrant carpet of leaves. With approximately 12,000 feet of elevation gain, crystal-clear stream crossings, and remote wilderness passages, this point-to-point adventure demands respect—and rewards perseverance with some of the most spectacular fall running in the heartland.

What Makes This Race Special?

18 years of ultra-running tradition in the heart of the Ozarks 13 fully-stocked aid stations staffed by trail angels who understand the ultra spirit A true point-to-point journey through pristine wilderness Technical single-track that keeps you honest and engaged Stream crossings that add adventure to your journey A coveted belt buckle that's earned the hard way Pre-race dinner where our ultra family gathers An intimate race atmosphere that honors the trail running spirit

Why Run the Ozark Trail 100?

This isn't your typical hundred. It's an opportunity to be part of something legendary—where autumn's splendor meets ultra-running grit. Whether you're chasing your first century finish or adding another buckle to your collection, you'll find a supportive community ready to help you write your next ultra story, backed by 18 years of race organization experience.

About The Course

Starting in the pre-dawn hours of October 31, 2026, your journey begins with headlamps piercing the darkness at 6:00 AM sharp. The trail winds through remote wilderness where October's unpredictable nature can deliver anything from Indian summer warmth to frost-kissed morning trails. This is where preparation meets opportunity, and where ultra-running dreams become reality.

Race Day Essentials:

Mandatory pre-race briefing on Friday, October 30 Crew access points at key locations Drop bag service at designated aid stations Pacer options starting at Brooks Creek (mile 40) Base camp and finish line at Bass River Resort

Registration Policy

The trail ahead is clear: your entry fee is non-refundable, non-transferable, and can't be rolled to future years. Like the challenge ahead, this policy is firm as the Ozark bedrock— no exceptions . Save your energy for the trail; we won't respond to requests for refunds, transfers, or rollovers.

Race Guidelines, Directions, and more...

Please visit www.ozarktrail100.com for complete details

Join us!

For an autumn adventure where dawn breaks over ancient hills, where friendships are forged in the crucible of shared miles, and where every finish is a victory celebrated by our entire trail running family. Register now to secure your spot in this iconic Midwest ultra experience. Limited entries to preserve the quality and integrity of the trail experience. Remember: On the Ozark Trail, determination meets destiny, autumn beauty meets pure grit, and every finish becomes part of our storied history. Come test yourself against 101 miles of Midwest's finest single track.