As we all know, mathematical roulette systems do not work. If you did not know this and were planning on using or buying one, you are well advised to reconsider.
The reasons why mathematical roulette systems do not work:
The spins are completely random. Every time the ball is spun every number has the same chance of coming up. It the ball has stopped on red for the last 10 rounds you would be tempted to bet that black will win on the next spin. The truth is that the chances of the ball stopping on red or black are 50-50. It doesn't matter if the ball has stopped on red for the last 10, 20 or even 100 rounds. Its chances of stopping on red or black are the same for every spin.
The outcome of the previous spin has no influence on the current spin. All the spins are independent and random. If a certain number has come up on the last spin this does not guarantee that it will not come up again in the current round. Also if a number hasn't come up in a while it doesn't mean it has better chances to come up in the current round. Every time the ball is spun all the numbers have the same chances of coming up, regardless of what numbers have come up in previous spins. Each spin is independent from previous spins.
No matter what you do you will not be able to influence the house advantage. Roulette is designed in such a way that you are always facing the same house advantage. No system will allow you to change this.
The Martingale money management system
The most common money management system is the Martingale system. It is widely spread on the internet and very popular. At a first glance this system seems to make sense. It advises you to double your bet after every losing round. You cannot lose forever and you will eventually win. Because you have continuously doubled your bet you will recover your loses when you eventually win. The drawback is that roulette games have a table maximum. You cannot wager more than the table maximum.
Let's take a look at an example. Let's say that you are playing a table with a minimum of $5 and a maximum of $500 and you are using the Martingale system. Let's see what will happen.
- You have bet $5 and lost.
- You double your wager. You have bet $10 and lost.
- You double your wager. You have bet $20 and lost.
- You double your wager. You have bet $40 and lost.
- You double your wager. You have bet $80 and lost.
- You double your wager. You have bet $160 and lost.
- You double your wager. You have bet $320 and lost.
- You double your wager, but that amounts to $640 and the table minimum is $500.
It only took 7 rounds to exceed the table maximum. You have lost a considerable amount of money because you did not win in these last 7 rounds. This is why casinos set up table limits. They want to prevent the use of such systems.
The Martingale system is based on the assumption that you will eventually win. Of course, no losing streak can last forever. But if you reach the table maximum you will lose your money. You must win before reaching this limit and since roulette is a game of pure luck you are never sure of being able to do so. Every spin is totally random and there is nothing that you can do to ensure you will win.
The only way the Martingale system could work is if you had a very large bankroll and if the table had no maximum limits. But no casino will allow this. The casinos are interested in making a profit, not letting you win. The house always has an advantage when playing roulette. The casinos made sure of that, so what makes you think they will allow you to win by using a money management system like the Martingale system?
The conclusion that we have reached from all the information presented above is that the Martingale system is no way near a fail safe system. It is not even a very good money management system. The Martingale system relies mainly on luck, on your luck of eventually winning. A simple measure as setting up a table maximum limit has efficiently foiled this system.
Money management systems, just as mathematical roulette systems, do not work. You are advised to seek out other methods of increasing you odds. Things like picking the right table or making good bets will efficiently increase your chances of winning. These are simple, but effective methods. For example European roulette has a lower house advantage than American roulette, and Red-Black bets have a 45% chance of winning.