Be smart, play smart, learn how to play casino craps the right way!
The Lay bet is for the 7 against your chosen number (i.e., the 4, 5, 6, 8, 9, or 10) and the payoff is according to true odds. It’s the opposite of the Buy bet, much like the Don’t Pass is the opposite of the Pass line. For example, if you Lay the 10, you hope a 7 shows before the 10; whereas, if you Buy the 10, you hope a 10 shows before the 7.
The Lay bet has the same vig as the Buy bet, but it’s based on the win amount, not the bet amount. For example, suppose you Lay the 4 for $100. The true payoff odds are 1:2, which means your winning $100 Lay bet pays $50. The vig is based on the $50 winnings, not the $100 bet. So, the vig is $2 ($50 x 5% = $2.50, which is rounded down to $2), instead of $5 ($100 x 5% = $5).
Lay bets are often called “No” bets. For example, suppose you play for three hours and not a ku bet . You decide you’re in a weird, anomalous blip of the distribution where the number 5 just isn’t going to show no matter what the craps gods do. You want to take advantage of that anomaly so you drop $75 in the Come box and tell the dealer, “Give me a No five, please.” The dealer moves your chips to the 5 point box and puts a LAY button on top. Lay bets are positioned in the same locations as Don’t Come with Odds bets. Sure enough, the 5 doesn’t show and the shooter rolls a 7-out. Your $75 Lay bet wins $50 (i.e., the true odds are 2:3, so $75 divided by 3 = $25, multiplied by 2 = $50). You must also pay the 5% vig on your winnings. To make it easier for himself, the dealer will likely give you two $25 chips for your winnings and say, “Drop me two dollars, please,” rather than count out $48 in chips. In this case, you simply drop two $1 chips in the Come box and then pick up your two $25 chips.
Unlike Buy bets, Lay bets are kept on and working on the come-out roll of a new game. However, you can always turn them off and on whenever you want. Typically, players leave their Lay bets on and working for the come-out roll because they have the advantage over the house (i.e., there are always more ways to make a 7 than any of the point numbers). Another reason–a silly reason, but a reason nonetheless–is because everyone is typically rooting for a 7 on the come-out (most people play the Pass Line, so a 7 on the come-out is a winner for them). With all that positive mojo at the table, a 7 is bound to show, so leave your Lay bets working for the come-out roll of a new game. Seriously, you should leave your Lay bets working on the come-out not because of table mojo, but because you have the advantage over the house.
Now you know! Remember, learn how to play casino craps the right way.