All in all, roulette may be classified as a game of probability, at least theoretically. However, whichever way you look at it, roulette is something like a coin toss. Each new turn of the wheel is completely new and does not lean on any of the other turns. In theory, the casino's advantage is 5.6 on a double zero wheel and 2.7 on a single zero wheel. This means that whatever you do, ultimately you will lose. However, into this come the element of luck, upon which the casino has no advantage.

The element of luck can help you a little in the game of roulette, but it is also important to know when to quit the game in order to stay ahead. When you are on a winning streak, this is the time to be cautious with you bets, since you may very well end up losing everything due to overconfidence. In other words, don't push your luck, since you never know when it is going to run out on you.

This is the point that a good system could help you. It would show you where to take you winnings and go, or cut you losses and go anyway. Accept the fact that in roulette there is no way for you to win back what you lose on a particularly unlucky day. If you are on a losing streak, then no amount of money will make up for it, and skill is of no use here.