Half marathons in Oklahoma

40 upcoming half marathons in Oklahoma. Filter by date, exact distance, or elevation.

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This calendar in numbers

This calendar currently lists 40 upcoming events, from Sep 26, 2026 to Apr 17, 2027. October is the busiest month, with 13 events scheduled. Events are spread across 13 different locations; Fort Worth hosts the most (9). Course distances range from 15 km to 21.1 km.