2 events in Jefferson County, Kansas

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

• Rock-On, Lake Perry! Trail Run [psychowyco.com] [Register at ultrasignup.com] - Facebook
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  Sun, May 17, 2026 at 8:00 AM

  50k Half Marathon Run Trail Ultra

  7481 74th, Jefferson County, Kansas, 66512, United States
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• Free State Trail Run [facebook.com] [Register at ultrasignup.com] - Facebook
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  Sun, Oct 11, 2026 at 8:00 AM

  Half Marathon Run Trail Ultra

  Jefferson County, Kansas, United States
  OpenStreetMap Google Maps