1 running event in Clayton, Missouri

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

• The Inkwell Clayton Kids Triathlon [bigshark.com] [Register at runsignup.com]
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  Sun, Aug 16, 2026 at 8:00 AM

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  The City of Clayton, Inkwell, The Center of Clayton and Big Shark Bicycle Company are proud to announce the 11th Annual Inkwell Clayton Kids Triathlon. This year's event will take place at Clayton...

  The City of Clayton, Inkwell, The Center of Clayton and Big Shark Bicycle Company are proud to announce the 11th Annual Inkwell Clayton Kids Triathlon. This year's event will take place at Clayton Shaw Park Outdoor Pool, Shaw Park and the new GRG Centennial Greenway. This fun and twisty course will introduce kids ages 7- 14 to the sport of triathlon. New for this year- following the completion of the younger age groups we will be holding a free Fun Run on the @1 mile run course.

  Fun Run Kids Run Triathlon

  27 S Brentwood Blvd, Clayton, Missouri, 63105, United States
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