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Race Guide
Cardiff Half Marathon
Date / Time
Length
13.10 miles (21.1 km)
Description
Cardiff Half Marathon
Sunday 5 October 2025
The Cardiff Half Marathon has grown into one of the largest and most exciting road races in the United Kingdom; and is truly a Race For Everyone. It is now one of Europe’s largest half marathons and is Wales’ largest mass participation and multi-charity fundraising event.
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