Kennet & Avon Canal 145 Mile Race

The Kennet & Avon Canal 145 Mile Race (KACR) 2025 is a non-stop ultramarathon from Little Venice, London, to Bristol, following canal, river, and railway paths. Organized under UK athletics rules, it features a scenic route passing through English countryside, including the famous Caen Hill flight of locks. The race is part of the Canalslam series and offers support for both supported and unsupported runners, with aid stations approximately every 25 miles.

Participants must complete the course within 45 hours, navigating with detailed maps. The event emphasizes low-key, low-cost participation, with awards for top finishers and all finishers receiving mementos. Visit the organization's website for the most recent information.