Roulette's strong attraction to gamblers lies in the payout it offers. The possibility of winning up to 35 times your original wager certainly creates enough excitement to lure players to the tables. And unlike other games at the casinos, the odds of roulette are easier to calculate. This is very important, since knowing the odds you're facing is always a prerequisite when you're going to play in any game of chance, not just in roulette. As a matter of fact, it may help you to know right now that roulette is ranked as one of the worst bets in any casino, because of its rather long odds of winning. The house advantage in roulette is at 5.26% for the American version, and the European version is at 2.7%. The house gets its advantage from the "0" section of the wheel, plus the "0" section in the American version. Aside from the zero slots, there are also 36 numbered slots in the roulette wheel. You can see that playing the European version can give the player a slightly better chance of winning. In European roulette, the slot online pays out the same as the American version, but it offers better odds of winning because it has one less zero slots in the wheel. Players will have a difficult time trying to find a game using a European roulette wheel in North American casinos, but it is a standard offering in online casino games. Actually, online casinos generally offer better odds in their games when compared to "real" casinos, and this is the same for roulette. Here are the probabilities of each bet in roulette. It's arranged according to the bets, the payout odds for each bet, and the probability of hitting the bet for each spin of the wheel. Red - 1 to 1 - 46.37% Black - 1 to 1 - 46.37% Even - 1 to 1 - 46.37% Odd - 1 to 1 - 46.37% 1 to 18 - 1 to 1 - 46.37% 19 to 36 - 1 to 1 - 46.37% 1 to 12 - 2 to 1 - 31.58% 13 to 24 - 2 to 1 - 31.58% 25 to 36 - 2 to 1 - 31.58% Any one number - 35 to 1 - 2.63% Two number combo - 17 to 1 - 5.26% Three number combo - 11 to 1 - 7.89% Four number combo - 8 to 1 - 10.53% Six number combo - 5 to 1 - 15.79% 0, 00, 1, 2, 3 combo - 6 to 1 - 13.16% The payout for betting on a single number is 35 to 1. To be perfectly honest, you would have to spin the wheel at least 38 times to ensure that you get a win. The house gets their edge from this, since 2/38 will go to the house, thereby securing them a 5.26% edge over the players. You would get even better odds of winning if the casino you're playing in offers a rule called the en prison bet. This rule lessens the house edge to 1.35%, which is very acceptable indeed. This rule only applies to even money bets, however. Let's say you've got a bet on black. If the ball lands on a zero slot, your bet does not win or lose, but is locked up for another spin. If the ball lands on black for the next spin, you get your original bet. If it lands on red, you lose. And if the ball lands on yet another zero, your bet is imprisoned for one more round.