You often read exciting stories online about profitable roulette systems, and many of them are shared by players exploring online casinos outside GamStop rules in search of better strategies. One of the most frequently mentioned is the Martingale strategy. It is even promoted as a way to “make money with online roulette.” Sounds good—but is it true? Below, we explain what the Martingale system is and how it works.
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What Is the Martingale Strategy?
The Martingale strategy was developed for roulette, but it is also used in other casino games. According to the stories, you can even bankrupt the casino with this system. This roulette strategy only works if you play a game with an almost 50% chance of winning. In theory, the Martingale roulette strategy does work—at least on paper.
But there are some significant practical drawbacks. Even when you win, the profit is small. If you lose, however, the losses can be substantial. Still want to give it a try? Then do so at a non-GamStop casino, where you can find many roulette tables, including Mega Roulette from Pragmatic Play Live.
Martingale isn’t the only roulette system promoted for online gambling. The Fibonacci roulette strategy is also very well-known.
Originally used for roulette, the system can also be applied to sports betting or other games of chance. In this article, we focus on roulette. Roulette became extremely popular in France and the rest of Europe during the 18th century, and soon players began trying to outsmart the casino. One of the earliest strategies developed was the Martingale system.
The concept is simple:
Lose? Then double your bet on the next round.
Win? Then you recoup all previous losses and make a profit.
Lose again? Double your bet again.
The idea is that you won’t lose an infinite number of times in a row.
In short: at some point, you win. That one win recovers all earlier losses—plus a small profit. After a winning bet, you can stop or start a new Martingale cycle.
How Does the Martingale Roulette Strategy Work?
The Martingale roulette strategy is simple. You place a bet and double it when you lose. You repeat this until you win. When you eventually win, the payout covers all previous losses, plus a small profit. You can test this system in a casino without GamStop.
Playing Roulette with Martingale
The Martingale system isn’t difficult, but here is an example.
Suppose you start with a €1 bet:
• Win? You receive €2 — a €1 profit.
• Lose? You double your next bet to €2.
If you win the €2 bet, you now have €4. You lost €1 earlier and wagered €2, leaving you with a €1 profit.
If you lose again, your total losses are €3. You then double your bet once more to €4. If you win with the €4 bet, you receive €8. Since you have wagered €7 in total, you again end up with a €1 profit.
This series continues indefinitely.
Example:
You bet €1 on red and lose. You then bet €2. If you win, you return with €4, meaning a €1 profit. If you lose, you double to €4. Winning this gives you €8, again resulting in a €1 gain.
Does the Martingale Roulette Strategy Always Pay Off?
Theoretically, the Martingale strategy is mathematically sound. It should guarantee a profit because every winning doubled bet ends €1 above the cumulative previous wagers.
However, real-world casinos don’t operate in theory. In practice, several factors can cause the Martingale strategy to fail, including the house edge and betting limits.
The House Edge in Roulette
It’s important to know that non GamStop casinos have a house edge on every game and online slot machine. This edge represents the casino’s long-term profit.
We assume simple bets such as:
• Red or black
• Even or odd
• High or low
These appear to have a 50% chance, but there’s a catch: the zero. When the zero appears, these bets lose.
The chance of landing on zero is 1 in 37 (European Roulette), which creates a house edge of 2.7%. In American Roulette, which has two zeros (0 and 00), the house edge increases to 5.3%.
One of the most favorable roulette variants is No-Zero Roulette—but non GamStop casinos do not offer it. A better alternative is European Roulette with the La Partage rule. In this version, if the ball lands on zero, you get half your stake back on even-money bets (red/black, odd/even, high/low). This reduces the house edge to 1.35%.
The Betting Limit in Roulette
Every roulette table has a betting limit. There is no online casino with a roulette table that has no limit. This means there will always be a point where you can no longer double your bet.
For example:
You play roulette using the Martingale roulette strategy at a table with a €100 betting limit and a minimum bet of €5. You lose several times in a row with bets of €5, €10, €20, €40, and €80. You can no longer double your bet. Your only option is to wager €100.
If you win, you receive €100, even though you already lost €155. So you still end up with a €55 loss.
In European Roulette, the probability of winning an even-money bet (red/black, even/odd, high/low) is 48.65%. The probability of losing is 51.35%.
The probability of losing five times in a row is 51.35%⁵, which comes out to 1.8%.
This means roughly one out of every 54.5 Martingale streaks will fail.
In American Roulette, the probability of losing five times in a row on even-money bets is even higher: 52.65%⁵ = 2.1%.
This means American Roulette will break your Martingale streak one out of every 47 times.
And of course, not only are betting limits capped—your personal bankroll is too. No player has unlimited funds, even at the best casino.
