What's a non-runner? A non-runner is a term commonly used in horse racing to identify when a selection that was due to run in a race has subsequently withdrawn. It can also be used across other sports to identify a selection that was due to compete in an event but subsequently did not take part. If you need assistance, please click here to see our contact details. Related articles What happens to my bet if my selection becomes a non-runner? Horse Racing Bet Settlement - Football 90 mins What's a run line bet? What is each-way betting