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Martingale: recovering after losses
The most famous betting system: double after a loss and the very first win covers the whole losing run. It sounds foolproof, but behind the simplicity lies the main risk — the strain on your bankroll. We break down the mechanic and the limits of where it works.
Martingale is popular for two reasons: it can be explained in a minute, and it lets you recover with a single win after a losing streak of any length. But that simplicity has a price — let's look at the mechanic, the risk, and the point at which the system breaks.
Martingale is one of the most popular roulette strategies for two reasons: its rules are easy to explain to a beginner, and it lets you recover with a single win after a losing streak of any length. The price for that is a colossal strain on your bankroll when several losses land in a row.
The core principle: double after a loss, reset after a win
Say the base bet is R20. After a loss, you double the next bet — so the very first win covers all the earlier losses. Here’s how it looks on even-money bets paying 1:1:
| Bet and result | Balance | Action |
|---|---|---|
| R20 — loss | −R20 | Double |
| R40 — loss | −R60 | Double |
| R80 — loss | −R140 | Double |
| R160 — loss | −R300 | Double |
| R320 — win | +R20 | Streak covered, reset |
After a win the player returns to the base bet (R20) and starts again. A detailed breakdown with charts is on the Martingale strategy page.
Martingale and high-risk bets
On even-money bets a win lands roughly every other spin, and long losing streaks are relatively rare. On bets with below 48.6% odds you can use Martingale, but only with great caution: a streak can drag on, forcing you to raise the bet tens, hundreds and thousands of times over. For straight-up bets, splits and streets it’s almost useless — you’ll run out of either bankroll or table limit first.
After ten losses in a row, the eleventh bet must be 1,024 times the first.1 That’s exactly why an “infinite” Martingale doesn’t exist.
The verdict: how to use it
Martingale helps you recover, but it promises no solid profit: a big win merely covers your losses, leaving you up by a single unit. Set your bankroll and base bet so you have a buffer for raising the stake hundreds of times over — otherwise you won’t survive a losing streak. On bets with below 48.6% odds it’s better to skip Martingale: the risk of busting the bankroll is too high. You can run the system over 1,000 spins and watch it break in our strategy tester.
Footnotes
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2¹⁰ = 1,024. The doubling progression grows in powers of two, so each further loss nearly doubles the total risk of the streak. ↩
Martingale: pros and cons
Pros
- A beginner grasps the rules in a minute.
- One win covers a losing streak of any length.
- Works well on 1:1 bets in short sessions.
Cons
- Needs a large bankroll — a buffer for hundreds-fold doubling.
- Breaks against table limits during a long losing run.
- Unsuitable for bets with below 48.6% odds.
- Gives no long-term edge — only recovery plus one unit.