Short answer: no. Martingale wins small amounts most of the time and then loses big. In 100,000 simulated sessions it lost the player's whole bankroll about half the time, and the average session lost money. The house edge applies to every euro you bet, and Martingale makes you bet a lot of euros.
How Martingale works
Martingale is the most famous roulette strategy, and the idea is simple:
- Bet one unit on an even-money bet, such as red.
- If you lose, double your bet.
- If you win, go back to one unit.
Every win recovers all previous losses plus one unit of profit. Since you must win eventually, it looks like it can't lose. The catch is how fast the bets grow:
| Losses in a row | Next bet | Total lost so far | Chance of this streak (European) |
|---|---|---|---|
| 5 | €32 | €31 | 1 in 28 |
| 6 | €64 | €63 | 1 in 55 |
| 7 | €128 | €127 | 1 in 106 |
| 8 | €256 | €255 | 1 in 207 |
| 10 | €1,024 | €1,023 | 1 in 784 |
All that risk is taken to win €1. And "1 in 106" sounds rare, but you face that chance again with every new betting sequence. Over a 200-spin session, a run of 7 or more losses happens about 60% of the time.
Two walls Martingale always hits
- Your bankroll. With €100 and a €1 starting bet, you can survive 6 losses in a row. The 7th bet needs €64 and you only have €37 left.
- The table maximum. Most tables cap bets. With a €500 limit and €1 starting bet, you can't place the 10th bet in a sequence (€512), so a long streak locks in a big loss even if you have the money.
We simulated 100,000 sessions
We ran the strategy through the same engine as our free roulette simulator: €1 base bet on red, €500 table maximum, a fair wheel, and 100,000 sessions for each setting.
| Setup | Sessions in profit | Lost whole bankroll | Average result |
|---|---|---|---|
| €100 bankroll, 50 spins | 73.2% | 19.3% | −€4.41 |
| €100 bankroll, 200 spins | 44.7% | 50.7% | −€13.96 |
| €100 bankroll, 1,000 spins | 12.4% | 86.9% | −€36.02 |
| €1,000 bankroll, 200 spins | 78.4% | 0.9% | −€26.22 |
| €100 bankroll, 200 spins, American wheel | 38.3% | 56.9% | −€26.82 |
What the numbers show:
- Short sessions feel great. Over 50 spins, almost three in four sessions end ahead. That's why Martingale has such a good reputation.
- The longer you play, the worse it gets. Over 1,000 spins, nearly 9 in 10 players lose their whole €100.
- A bigger bankroll hides the problem; it doesn't fix it. With €1,000, 78% of sessions win (about €96 on average), but the losing sessions lose about €467 each. The average is still negative, and more is lost than with €100, because more money is put at risk.
- The house edge always shows up. In every row, the total lost was about 2.7% of the total wagered on the European wheel, and about 5.3% on the American wheel.
Compare with flat betting: betting €1 on red for 200 spins lost €5.45 on average. Martingale lost €13.96 over the same spins, because it put about €515 on the table instead of €200. Same edge, more money exposed.
Why no betting system can work
Every spin is independent: the wheel has no memory of the last result. Each bet has the same negative expected value, so any combination of those bets also has a negative expected value. A betting system can only change the shape of your results: many small wins and rare big losses (Martingale), or the reverse (betting on single numbers). It can't change the average.
Doubling after wins instead, the reverse Martingale or Paroli, is much safer but still loses the house edge. See Reverse Martingale (Paroli) tested.
The same goes for other progressions like D'Alembert, Fibonacci and Labouchère. They grow more slowly than Martingale, so the big losses come less often but they still come. Try them side by side in the simulator.
If you still want to play Martingale
Treat it as entertainment with a cost, not a way to make money:
- Play European roulette, never American. See European vs American roulette odds.
- Decide your session bankroll in advance and accept that you may lose all of it.
- Keep sessions short and stop when you're ahead.
- Never add money mid-session to "keep the progression going". That's chasing losses.
Our guide on how to set a roulette budget walks through those limits step by step.