Half marathons in Ohio — September 2026
21 upcoming half marathons in Ohio during September 2026.
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This calendar currently lists 21 upcoming events, from Sep 5, 2026 to Sep 26, 2026. September is the busiest month, with 21 events scheduled. Events are spread across 17 different locations; Cincinnati hosts the most (3). Course distances range from 14 km to 21.1 km.