Re: Sports betting ??
Depends on the initial criteria set by the Book you bet at. IME, the betting sheet with the odds on it for these types of bets have those rules listed at the bottom of the page (i.e. "No action if player doesn't participate").
Your best bet is to call them directly and ask. I doubt anyone here will be able to give you a definitive answer.
TL;DR: You'll probably get your money back.