Each roulette table moves in sessions, each session is associated with a spin of the wheel and that spin's result. If you haven't read up on the rest of the site I'll quickly go over the different colors of chips and how they relate to the rest of the roulette rules. After the ball has started spinning, the dealer will wave his hands across the table and say 'no more bets'. At this point, as you intuition may have mentioned to you, you can't place any more bets. Now lets take a look at each of the individual bets you can make. On inside bets, the total of all of your bets must add up to at least the table minimum. The outside bets on a roulette board are simply the bets that reside 'outside' of the main playing area of 38 numbers. There are no winning outside bets for 0 or 00 results. Dozens - a bet very similar to the columns bet, dozens lets you place a bet on either the first dozen numbers (1-12), the second dozen (13-24), or the third dozen (25-36)

In most games players can continue making bets even while the ball is still spinning. When the ball falls into a slot, the dealer will announce the number and the color, and place a marker on the layout where the winning number is. Then he'll scoop up all the losing bets towards the dealer area. That way if two players bet on the same number (or set of numbers), then the dealer knows who to pay, and arguments can't arise over who bet what. Sometimes the dealer will ask you "Inside or Outside? " when you're buying chips, to find out whether you're making inside bets (the ones listed in purple in the table, on specific numbers) or outside bets (the ones listed in yellow, on kinds of numbers) That way, you're not locked in and you always have the ability to change your mind. There's no advantage to limiting yourself to inside or outside. Inside bets can usually be as small a you like, as long as the total of all your inside bets is the table minimum. Remember that you can bet inside or outside if you like; there's no requirement to bet both on a given spin. In this way, Roulette is more like slots - one single bet can win a lot. Here's another example: Since there are 38 slots on the wheel, we expect any given number to hit 1 out of 38 spins on average. Now let's say you've been playing Roulette for a few hours, betting on Red every time, and you've been keeping track of what numbers have hit. The chances of #27 coming up on a given spin are the same, whether it just come up on the last spin or not - 1 in 38. On an American wheel, there are 38 spots - numbers 1-36, plus 0 and 00. European games have an option called en prison which reduces the house edge to 1.35%, but it's generally not available in the U.S., even in casinos that use the European wheel. On even money bets when 0 comes up, instead of losing right away, your bet is "imprisoned" and rides again for the next spin.