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Any time before the end of the final betting round, folding in turn if there's no bet to you (ex: facing a check or first to act post-flop) or folding out of turn are binding folds subject to penalty. So, the fold is binding and is subject to penalty.
Taking the same example, if you bet on Che. Home no bet and away no bet are self-explanatory types of handicap bets where the bet is void or refunded if a certain outcome occurs. With a home no bet, if the home team wins then the bet is void/refunded. You only lose the bet if the away team wins.
