3 running events in Warren County, Missouri

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

• Innsbrook Triathlon [mseracing.com] [Register at runsignup.com]
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  Sat, Jun 06, 2026 at 7:00 AM

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  Come and race in the most beautiful venue that we have near St. Louis! Innsbrook Resort is full of breathtaking views, lakes, and wooded acres. We are starting at Lionshead Beach on Lake Aspen! It is...

  Come and race in the most beautiful venue that we have near St. Louis! Innsbrook Resort is full of breathtaking views, lakes, and wooded acres. We are starting at Lionshead Beach on Lake Aspen! It is a gorgeous, sandy beach start. Swim in the lake, bike on gentle rolling hills surrounding the resort, and run on part gravel, part pavement as you take in the scenery. We offer sprint and Olympic distances with Aqua bike and relay options!

  For more information including course maps, schedule of events, race options, volunteer signup, etc. Please visit - https://www.mseracing.com/innsbrook-triathlon

  All athletes MUST show a Photo ID and pick up their own race packet, NO EXCEPTIONS.

  Aquabike Cycling Gravel Run Swim Triathlon

  596 Aspen Way Dr., Warren County, Missouri, 63390, United States
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• Innsbrook Kids Triathlon [mseracing.com] [Register at runsignup.com]
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  Sun, Jun 07, 2026 at 8:00 AM

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  We are thrilled to host the 5th annual Innsbrook Kids Triathlon! The race will start at Charette Creek Commons. The bike is flat and fast! Athletes will ride on scenic paved roads partially closed to...

  We are thrilled to host the 5th annual Innsbrook Kids Triathlon! The race will start at Charette Creek Commons. The bike is flat and fast! Athletes will ride on scenic paved roads partially closed to traffic with plenty of volunteers along the course and turns clearly marked. Then onto the fun run! It is also FLAT and is half pavement, half on a shady gravel trail.

  For more information including, but not limited to race options, course maps, schedule of events, packet pickup/endurance expo, volunteer - signup, sponsorship info, parking, etc. Please visit - https://www.mseracing.com/innsbrook-kids-triathlon

  Fun Run Gravel Kids Run Trail Triathlon

  596 Aspen Way Dr., Warren County, Missouri, 63390, United States
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• The Innsbrook Half Marathon & 10k [runsignup.com]
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  Sat, Oct 24, 2026 at 9:00 AM

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  The Innsbrook Half & 10k returns for 2026. Run on one of the most scenic, beautiful and challenging courses in the Midwest during the peak of fall color in Missouri! Hosted by Big River Race...

  The Innsbrook Half & 10k returns for 2026. Run on one of the most scenic, beautiful and challenging courses in the Midwest during the peak of fall color in Missouri! Hosted by Big River Race Management at the beautiful Innsbrook Resort. Located just one hour from St. Louis, runners and walkers will be treated to 13.1 or 6.2 miles on a mix of pavement and smooth gravel roads. A certified course, custom finisher medal, premium long-sleeved giveaway, a catered to-go lunch, live music and cold beer wait at the finish - you are not going to want to miss this event! The Innsbrook Half Marathon & 10k will be capped at 500 runners ensuring small start waves and ideal course density. The event will sell out in 2026, so don't wait, sign up today!

  10k 13.1 Miles Gravel Half Marathon Run Walk

  Charrette Creek Commons, Warren County, Missouri, 63390, United States
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