Roulette is a game of pure chance and each single spin is unrelated to any previous spins. An American roulette wheel has an extra slot; 00. Most casinos have 00 on their roulette wheels to increase the odds to their advantage (American Roulette) On both wheels, you may think that there is no rhyme or reason as to how the numbers are arranged, but there is; the numbers are arranged this way so that the odds of landing on high, odd, low or even numbers are evenly distributed. The game of roulette starts after the players have made most of their bets by placing them on the numbered layout. If the roulette ball lands in the 0 slot, the game ends and all players receive half their original bets back. Winning bets are determined by the numbered slot in which the ball comes to rest. The winning roulette number is marked by the Dealer. Roulette is a banking game: all bets are placed against the house. Once the roulette ball has found its slot, the dealer will call out the winning number and place a marker on that number's spot on the layout. Wait til the dealer says "place your bets" before putting any roulette chips down for the next round. You should remember to exchange the colored non-value Roulette chips for valued gaming chips prior to leaving a particular Roulette table. When you finish beating the house at roulette, you will have to ask the dealer to "color out" for you, the dealer will then take your chips and give you casino checks which you may then use on other games or cash out at the cashier.