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is a term commonly used in horse racing to identify when a selection that was due to run in a race has subsequently withdrawn.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. For more information, see our general rules here. If you need assistance, please click here to see our contact details. Related articles Contact us What's a Rule 4 deduction? Football Betting Rules Has my bet been settled correctly? System bet settlement