Half marathons in United Kingdom — October 2026

23 upcoming half marathons in United Kingdom during October 2026.

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This calendar currently lists 23 upcoming events, from Oct 3, 2026 to Oct 31, 2026. October is the busiest month, with 23 events scheduled. Events are spread across 22 different locations; Cardiff hosts the most (2). Course distances range from 11.7 km to 21.1 km.