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Tools

Losing streak calculator: odds of 5, 8 or 10 losses in a row

Free losing streak calculator: see how likely 5, 8 or 10 losses in a row are over a series of trades at your win rate, so you can size your stake for it.

Chance of at least one streak this long64.7%

Chance of a losing streak in 100 trades

Losses in a rowWin rate 50%Win rate 55%Win rate 60%
497.3%91.5%80.1%
581.0%64.7%45.9%
654.6%36.3%21.2%
731.8%17.9%8.9%
817.0%8.4%3.6%
104.4%1.7%0.6%
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FAQ

How often will I lose 5 trades in a row?

At a 55% win rate, the chance of at least one run of 5 losses within 100 trades is about 65%. Plan your stake size for it.

Does martingale fix losing streaks?

No. Doubling after each loss makes a long streak wipe out the account faster.