Half Marathons Near St. Louis, MO
As of October 6, 2026, Crewable lists 7 upcoming half marathons near St. Louis, MO from October 2026 to December 2026. The next is Spooky Sprint- St. Louis on October 24 in St. Louis, MO. Registration is open for 6.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
Race calendar
October 2026
3 racesNovember 2026
3 races14th Annual Springfield Marathon & Harvest Wind Half Marathon & 10K
New Berlin, ILMarathonHalf Marathon+1Open until Nov 8from $55MO' Cowbell Marathon/Half-Marathon/10K/5K
Saint Charles, MOMarathonHalf Marathon+2Open until Nov 8from $35
December 2026
1 raceQuick answers
What is the next half marathon near St. Louis, MO?
Spooky Sprint- St. Louis, on Saturday, October 24, 2026, in St. Louis, MO. Distances: Half Marathon, 10K, 5K.
What is the closest half marathon to St. Louis?
Spooky Sprint- St. Louis in St. Louis, MO, about 1 mile from St. Louis, on October 24, 2026.
How many half marathons near St. Louis, MO have open registration?
6 of the 7 list registration as open as of October 6, 2026, including Spooky Sprint- St. Louis, The Great GO! St. Louis Halloween Race and The Innsbrook Half Marathon & 10k.
What is the busiest month for half marathons near St. Louis, MO?
October 2026, with 3 of the 7. November 2026 follows with 3.
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