Throughout the years various betting systems have emerged which were originally designed to be used in roulette. They gained popularity so much that they were eventually adapted to other casino games as well. Usually, in order to apply most betting systems in blackjack, craps or baccarat, you need to make some adjustments. However, when it comes to roulette, there is no need as in most cases the betting systems are entirely suitable for this game.

One of the most popular systems of this type is the D’Alembert betting system. It is used mainly on even-money bets which is the reason why it is so widely used in roulette. This system focuses on helping you keep your money losses as low as possible by urging you to place bets whose amount increases gradually. It is considered to be one of the simplest betting systems in terms of usage and main rules. If you decide to apply it, you will most probably neither accumulate nor lose substantial amounts.

## Brief History

It is believed that the system was invented in the 18th century by the renowned French mathematician and physicist Jean-Baptiste le Rond D’Alembert. It all started when he decided to look deeper into the physical forces which resulted in developing his laws of motion. He came up with lots of famous theories, including D’Alembert’s paradox and the D’Alembert Principle. The latter was such a breakthrough that it was used as a foundation for the Newton’s Second Law.

However, not all of his enterprises were that successful as he was also known for his mistaken belief on the frequency of occurrence. One of his ideas was that the likelihood of a coin landing on heads increases, every time it lands the other way round. Such statements are also known as Gambler’s fallacy. When it comes to roulette, this principle implies that the outcome of previous rounds influences the next spinning of the wheel. This is entirely incorrect since players’ chances of winning are always the same and the previous outcomes have no impact on the next round.

## Basics of the D’Alembert Betting System in Roulette

The basics of this betting system are rather straightforward and very easy to grasp, even by inexperience players. D’Alembert system is is a negative progression system. In general, this means that you should increase your bet when losing and decrease it when winning. The exact amount and manner, in which you are supposed to alter your bets, differ from one betting system to another. In this betting system, you are required to add one betting unit to your wager when you lose and vice versa, take out one betting unit when you win.

Before the beginning of the game, you need to determine the amount of one betting unit. In order to manage to set a reasonable amount, it is recommended to take into account your bankroll. When the game starts, you are required to put an even-money bet which equals the betting unit you have initially set. In order to illustrate better how the system works, let’s have a look at the following situation.

For instance, let’s assume that you set the amount of your initial betting unit to \$5. Then, imagine that the game starts in an unfavourable way and you lose. What you need to do is to simply increase the amount of your wager with one betting unit in which case you are required to place a bet of \$10. Let’s assume that the ball lands once again on a number that you haven’t bet on and in this case, your next wager should be \$15. You should continue following this pattern until a win finally occurs. Let’s say that you suddenly get lucky and finally win, in which case you are required to decrease your next wager by one betting unit. As a result, its amount becomes \$10. If you reach the initial position from which you have started (\$5 in this case), you should simply continue betting this amount until you lose.

Roulette The D’alembert Betting System
Bet Number Bet Size Spin Outcome Net Winnings
#1 5 LOSS -5
#2 10 LOSS -15
#3 15 LOSS -30
#4 20 WIN -10
#5 15 WIN +5
#6 10 LOSS -5
#7 15 WIN +10
#8 10 WIN +20

## Pros & Cons of the D’Alembert Betting System

The simplicity of this system is considered to be a major advantage as it gives all types of players the chance to learn it and apply it when playing roulette. Its plan is very easy to grasp as there are only three main things you need to remember – set an initial betting unit, add one betting unit to your wager when you lose and subtract the same amount when you win. Another thing worth noting is that it requires a relatively small bankroll, providing that you set a reasonable amount for one betting unit.

This system calls for increasing your stake every time you lose and you are required to do so gradually. This means that the size of your bet is unlikely to become extremely big and thus, you will you be able to stay in the game for much longer, without worrying that you will run out of money. The D’Alembert betting system has proven to be very efficient and it can help you fetch a small profit.

While it is true that if you use this system you can generate a small profit, this only applies for short-term sessions. Bear in mind that even if you manage to make a profit, its amount will be most likely relatively small, considering that the system aims at minimizing your losses rather than helping you win more money. Also, making a profit is only possible if you win in the right sequence as this is an aspect which matters greatly in this system. Of course, there is no way to alter or predict the outcome of every round and as a thus, there is no guarantee that you will generate any profit at all.

The main principle behind every negative progression betting system is that it is not possible to experience an endless losing streak. While it is true that you are bound to win at some point, bear in mind that this desired outcome might not even occur while you are playing the game. Furthermore, if you experience a few losing rounds, in order to compensate for your losses, you have to win several times. This can be a hard task, providing that from a statistical point of view, you are expected to lose more since every casino game, including roulette, has a built-in advantage known as house edge.

As a negative progression betting system, the D’Alembert Casino System has also some major flaws which you should consider in advance.

## Final Thoughts

The D’Alembert betting system can be very efficient, however only on the condition that you don’t experience a long losing streak. Since you can never know what the outcome of the game will be, this system doesn’t guarantee that you will minimize your losses. The approach it uses is not as risky as some other negative betting systems and as a result, your chances of making a profit are also decreased. However, even though this betting system has some flaws, it is still extremely popular among roulette players as it is fun and easy to use.