Marathons in Missouri — 2026

There are 14 marathons in Missouri scheduled for 2026. The next is the Garmin Kansas City Marathon in Kansas City on October 17. Missouri marathons run primarily October through August.

Ballwin Triathlon

Sun, Jul 18 · Ballwin, MO Ballwin
SPRINT INDIVIDUAL TRI SINGLE Wave 2 - STARTS 7:00AMSPRINT INDIVIDUAL TRI SINGLE Wave 2 - STARTS 7:00AMSPRINT INDIVIDUAL TRI DOUBLE Wave 1 - STARTS 6:45AM +8
From $25 Open 1 spots left
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Kansas City 3 Springfield 2 Republic 1 Rolla 1 Saint Charles 1 Saint Louis 1 Smithville 1 Steelville 1 Ballwin 1 St. Louis 1 Chesterfield 1

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