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Martingale Sports Betting Calculator

Risk management tool for the Martingale strategy. Calculates the stake progression needed to recover losses and tracks bankroll exposure for up to 20 steps.

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Total Usage 1 times
Category Statistics & Probability
RISK WARNING: Betting strategies do not guarantee profits. Losses can exceed deposits.
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About

The Martingale strategy is a negative progression system that involves doubling the stake after a loss to recover previous losses and gain a small profit. While theoretically sound with infinite wealth, in reality, exponential growth quickly hits table limits or depletes bankrolls. This calculator simulates the progression, showing exactly how much capital is at risk at each step. It serves as a vital reality check for bettors, highlighting the dangerous "doubling down" mechanics before real money is placed.

betting risk management martingale probability odds calculator

Formulas

To recover all previous losses and achieve a target profit, the next stake is calculated using the odds.

Stakenext = Target Profit + Total LossOdds − 1

For standard even-money bets (Odds = 2.0), this simplifies to doubling the previous stake.

Staken = Stake0 × 2n

Reference Data

StepOutcomeActionRisk Level
1WinReset to Base StakeLow
1LossDouble StakeLow
2LossDouble Stake (4x Base)Moderate
3LossDouble Stake (8x Base)Moderate
5Loss32x Base StakeHigh
10Loss1024x Base StakeExtreme

Frequently Asked Questions

No. Martingale only works if you have an infinite bankroll and the bookmaker has no stake limits. In reality, a losing streak of 8-10 games is statistically possible and will likely wipe out a standard bankroll.
The multiplier increases significantly. If you bet on 1.5 odds, you must more than double your stake to recover losses, accelerating the risk of bankruptcy.