Whether the kind of roulette being played is American roulette, which has a wheel with two green pockets numbered zero and double zero, or European roulette, which only has one green pocket, the numbers on the roulette table are always arranged in a particular way. To keep the bets organized and keep track of how much and who has made these wagers, most casinos have roulette tables tables that have cloth tops where the numbers on the roulette wheel and the most common types of bets in roulette are arranged and printed.

In roulette, a person wins if the roulette ball lands in the pocket or set of pockets that they had wagered it would land in.