Half Marathons in Missouri 2026 | Upcoming Races & Dates

There are 7 half marathons in Missouri scheduled for 2026. The next is the Muddy River Half Marathon in Cape Girardeau on May 1. Missouri half marathons run primarily May through October.

Muddy River Half Marathon

Fri, May 1 · Cape Girardeau, MO Cape Girardeau

1/2 Marathon Virtual1/2 Marathon1/2 Marathon Relay

From $60 Closed 75 spots left

TOUR de HOPE Road

Sun, May 3 · Kansas City, MO Kansas City

🚴 15-Mile Route🚴‍♀️ 38-Mile Route🚴‍♂️ 55-Mile Route +1

From $20 Open Closing Soon

Ballwin Triathlon

Sun, Jul 19 · Ballwin, MO Ballwin

SPRINT INDIVIDUAL TRI SINGLE Wave 2 - STARTS 7:00AMSPRINT INDIVIDUAL TRI DOUBLE Wave 1 - STARTS 6:45AMREMOVE THE LIMITS BUDDY - Wave 4 - STARTS 8:30AM +3

From $25 Open 14 spots left