What is the D’Alembert Roulette Strategy?

The D’Alembert roulette strategy is a straightforward and very popular betting strategy that can be used on even-money bets. This system dictates a betting strategy of increasing your bet for one betting unit after every loss and decreasing it after every win.

It is often compared to the Martingale betting system, as it is also a negative progression betting system. However, it is less risky than the Martingale strategy, as you don’t increase your bets as rapidly with this system.

The D’Alembert roulette strategy has inspired the creation of the reverse D’Alembert system, which works identically but is a positive progression system instead. With the reverse D’Alembert roulette strategy, you would increase your stakes by one unit after a win and decrease them after every loss.

You can use the D’Alembert roulette betting system on red/black, odd/even, and high/low bets. The system is easy to follow, even for beginner roulette players. Here’s a table overview of how the D’Alembert roulette betting strategy works in practice based on a random outcome of ten spins:

Bet Amount	Bet Outcome	Net Profit
$5	Loss	-$5
$10	Loss	-$15
$15	Loss	-$30
$20	Loss	-$50
$25	Win	-$25
$20	Loss	-$45
$25	Win	-$20
$20	Win	$0
$15	Loss	-$15
$20	Win	$5

As you can see from the table above, the D’Alembert roulette strategy enables you to profit even if you lose more roulette spins than you win. It is not as risky as some other betting systems and is a good pick for roulette players who want to keep tight control of their bankrolls.

The downside of this roulette betting system is that it won’t provide you with big wins, but serves more of a strategy for steady roulette bankroll building. Additionally, it’s important to factor in the 0 pocket in even-money bets, meaning that your winning chances aren’t actually 50/50. While the D’Alembert roulette strategy is fairly conservative, prolonged losing streaks should be factored in, and you need to have a sufficient bankroll.