Horse-racing rules
Can the same horse be a non-runner in one bet and a loser in another?
Direct answer
Yes; ante-post and non-runner-no-bet markets can have different treatment for withdrawals.
How to use this answer
The principle is supported by the referenced rules, but a different operator or market can apply a different settlement condition. Treat the named provider as a specific example, not as a universal betting rule.
Racing bets can have different dead-heat, withdrawal, non-runner and each-way settlement conditions. Confirm the race time, final official result and the operator’s rule that applied when you placed the bet.