Roulette: The D’Alembert System

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There may not be a roulette strategy out there which guarantees a win, but there are several which can help you increase your odds of success, and potentially stay in the game longer. Some come with a touch more risk than others. The D’Alembert System is arguably one of those which represent a lower risk of losing more considerable sums of money. Naturally, for any player at who is interested in learning roulette strategies, the D’Alembert system is worth a closer look.

Introducing the D’Alembert System

As with the Martingale System, and other well-known roulette strategies, the D’Alembert System is most effective when it used to place even money bets. That means to say stakes on odds, evens, reds, or blacks. It is known as a positive progression betting system, meaning that you increase your bets following a loss. However, unlike the Martingale System (which sees you double your bet following a loss), the D’Alembert strategy requires you to add a single unit to your bet every time you lose.

A unit is defined as whatever your starting bet is – in most cases, this will be $1. Following any win, you will decrease your stake by a single unit. To best see how this works, we have included an example below.

The D’Alembert System in Action

It would help if you first decided what your “unit” is. For simplicity, we have chosen to value a unit at $1. To begin with, you place a bet on roulette with a single unit ($1). The basic idea is that following a loss, you add a single unit ($1) to your next bet, and following a win, you reduce it by a single unit ($1). Naturally, you cannot drop any lower than your original $1 bet, so if you win straight away, keep the same bet the next time around.

However, if you lose the first bet, your second stake would be your original unit $1) plus a single unit (another $1) to give you $2 bet. If you lose again, this bet then becomes $3 and following another loss, a $4 bet, and so on. Following a win, you subtract one unit from the previous bet. So if you lose the first two bets and won your third (when you wagered $3), your fourth bet would drop to just $2.

Why You Should and Should Not Use It

There are a few pros and cons to using the D’Alembert System when betting on roulette. Here is what you need to know:

Reasons to Use the D’Alembert System

  • It is a simple betting strategy which is easy for you to keep a handle on
  • It is most effective with even-money bets
  • It is a lower risk strategy than the Martingale, so you stand less chance of busting your bank during heavy losing streaks

Reasons to Avoid the D’Alembert System

  • The D’Alembert System is not immune to long losing streaks
  • This strategy is only optimised for short-term gameplay

Should I Use This Roulette Strategy to Play Online?

The D’Alembert System is perfect for roulette beginners who want to avoid the potential high-risk involved with simple strategies like the Martingale. It can also be used on other gambling games, such as baccarat and blackjack. As it is extremely basic to get to grips with, the D’Alembert System could be ideal for any Canadian roulette player looking for an entry strategy to start playing roulette online for real money.


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