Race calendar · September 2026 · Missouri
Every Half Marathon in Missouri in September 2026, all 5 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
5 Half Marathon races in September 2026
By the numbers
The September Half Marathon races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
The busiest weekend in Missouri is September 26 and September 27, with 5 Half Marathon races on those two days, and the single busiest day is Saturday, September 26 with 3. Every one of them is on a Saturday or a Sunday.
The typical entry is $30, with paid entries running from $22 up to $30. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
August and October sit either side of September, which is where most people look next when a date does not fit.
