A Lucky 63 bet consists of six selections that combine to make 63 different bets. These are: 6 singles, 15 doubles, 20 trebles, 15 four-folds, and 6 five-folds and a six-fold acca. It’s most commonly used in horse racing. You need at least one of your six selections to win in order to claim anything back from a Lucky 61 bet. Learn more about Lucky 63 bets here.