Half marathons in Indiana — September 2026
14 upcoming half marathons in Indiana during September 2026.
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This calendar currently lists 14 upcoming events, from Sep 5, 2026 to Sep 26, 2026. September is the busiest month, with 14 events scheduled. Events are spread across 12 different locations; Cincinnati hosts the most (3). Course distances range from 14 km to 21.1 km.