2 events in Arnold, Missouri

From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.

• Book It: Foam Run [jeffcolibrarymo.libcal.com] [Register at raceroster.com]
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  Sat, Apr 18, 2026 at 8:00 AM

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  Are you ready to "Book It" for community literacy? Join the Jefferson County Library for a no-cost, family foam run on Saturday, April 18th, 2026. This run will be held at Arnold City Park, 2400...

  Are you ready to "Book It" for community literacy? Join the Jefferson County Library for a no-cost, family foam run on Saturday, April 18th, 2026. This run will be held at Arnold City Park, 2400 Bradley Beach Rd, Arnold, MO 63010, with a timed 5k option OR an untimed 1 mile option. Whether you're ready to run or just here for the fun, this community event sponsored by the Arnold Tourism Commission, can be your chance to spring into warmer weather with a little help from your Jefferson County Library! All participants welcome regardless of whether they are JeffCo residents. Run for reading and register TODAY

  5k Run

  2400 Bradley Beach Road, Arnold, Missouri, 63010, United States
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