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4 ultra events in St. Louis, Missouri

From big races to Saturday morning group runs—find ultra events and connect with the local endurance sports community.

  • Sat, Mar 14, 2026 at 9:00 AM

    The great tradition of the Michelob ULTRA St. Patrick's Day Run as a rite of spring is back!

    The 48th Annual Michelob ULTRA St. Patrick's Day Parade Run is "returning to the streets" on Saturday, March 14, 2026. One of the largest events of its kind in the St. Louis area, with more than 5,000 participants, the NEW 5K Run travels the streets of downtown and midtown St. Louis before the St. Patrick's Day Parade, regularly noted as one of the top in the country.

    The St. Louis Metropolitan St. Patrick’s Day Parade and Run Committee is a 501[c]3, all-volunteer charitable organization which – thanks to the support of our sponsors and thousands of runners like you - has raised tens of thousands for St. Louis area charities over the past 47 Runs.

    We appreciate your continued support.

    See full details
    5kRunUltra via RunSignup
  • Sat, Jun 06, 2026 at 5:00 AM

    Conquer the Ultimate Team Adventure at the GO! St. Louis KT82 Trail Relay!

    Ready to take your running game to the next level? Gather your crew for the KT82 Trail Relay, a one-of-a-kind journey through the breathtaking trails and rolling countryside of Missouri. Spanning 82 miles of scenic beauty, this epic team race is designed to challenge your stamina, teamwork, and spirit while delivering unforgettable memories.

    Here’s why you’ll want to join the fun:

    🏃‍♂️ Team Spirit: Compete with friends, family, or coworkers as a team of 6 (or 3 for the ultra challenge), with each runner tackling multiple legs of the course.

    🌲 Scenic Trails: Experience a unique mix of natural terrain, historic sites, and scenic views that will inspire and energize you every step of the way.

    🔥 Unmatched Energy: From start to finish, the camaraderie and excitement will keep you motivated. Plus, we’ve got amazing support and well-stocked transition zones to keep you going.

    🎉 Celebrate Your Victory: Cross the finish line together and enjoy post-race festivities, food, and the joy of accomplishment.

    Whether you’re chasing personal bests or simply soaking in the adventure, the GO! St. Louis KT82 Trail Relay promises an exhilarating day that runners of all levels will love. Don’t miss your chance to be part of this thrilling event!

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