2 triathlon events in Warren County, Missouri

From big races to Saturday morning group runs—find triathlon 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
  OpenStreetMap Google Maps