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K12 Ultra Marathon

Kilmarnock, United Kingdom • 3 Aug 2025

The K12 Ultra Marathon is a 12-hour endurance running event held at Dean Castle Country Park in Kilmarnock on August 3, 2025. Participants run laps of an approximately 4km mixed-terrain circular route featuring hill sections, aiming to cover the greatest distance within the time limit. The event offers both individual and relay categories, with relay teams of up to four members sharing the 12-hour duration as they choose. Facilities include an athletes' village with tented support areas, showers, toilets, a café, and access to boiling water. Chip timing, first aid, and finisher medals are provided, creating a well-supported and competitive ultra marathon experience. Visit the organization's website for the most recent information.

United Kingdom Scotland Kilmarnock

Race information

Website Registration
12 km
K12 Ultra Marathon 12 Hours
12 km
K12 Ultra Marathon Relay 12 Hours
Visit the organization's website for the most recent information.
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