Browse all Missouri Half Marathons in 2025 by month and by city below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up.
We dedicate hours every month searching for races to include in the Missouri Half Marathons calendar. If you happen to see any half marathon not included, contact us at [email protected] to submit your race.
The three most popular Missouri half marathons are the Kansas City Half Marathon with 2,837 finishers, followed by the Rock the Parkway with 2,559 runners, and then the GO! St. Louis Marathon Weekend Half Marathon with 2,434 finishers.
The best Missouri half marathons we recommend most frequently for beginners are:
GO! St. Louis Marathon Weekend Half Marathon: While not the most scenic race, the course is easy with light rolling hills and the finishing area in the Gateway National Park is one of a kind.
Hospital Hill Run Half Marathon: A Kansas City running tradition with a high energy finisher party.
Rock the Parkway Half Marathon: One of the largest races in Kansas City with a beautiful course and crowds.
September is the most popular month to run a half marathon in Missouri.
Half Marathon Guide is the largest calendar and educational resource in the world for half marathon runners and enthusiasts with over 10,000,000 annual visitors.
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