How the Martingale works
The Martingale is a progressive betting system: you double your bet after every loss on an even-money bet (red/black, odd/even, low/high), then go back to your initial bet after a win.
The idea: the first win recovers all previous losses and earns one initial bet. But you must be able to keep doubling… and sooner or later your bankroll or the table limit stops you.
Strengths
- Very simple to understand and apply.
- A single win wipes out all losses of the current series.
- Short series usually end with a small profit.
How it works in 3 steps
- Initial betE.g. €10
- Loss?Double the bet
- Win?Back to the initial bet
Bets, loss after loss:
Progression example (initial bet: €10)
| Spin | Bet (€) | Result | Cumulative losses (€) | Net result (€) |
|---|
Martingale Calculator
Sequence results
- Next bet
- —
- Total staked
- —
- Remaining bankroll
- —
- Max. losses covered
- —
European roulette, even-money bet: 18 chances in 37 of winning and 19 of losing (the zero loses).
Max. losses covered: the number of losses in a row after which you can still double your bet without exceeding your bankroll or the table limit.
Bets and bankroll over the sequence
- Bet per spin
- Remaining bankroll (€1,000)
- Table limit (€500)
Limits and risks
- Bets grow very fast (exponential progression).
- Long losing streaks are always possible.
- Table limits can stop you from continuing the system.
- You need a large bankroll to survive several losses.
- The Martingale does not remove the casino's mathematical edge (≈ 2.7% on European roulette).
No betting system guarantees a win: every spin is independent of the previous ones.
