🔢 Interactive Tool

Consecutive Loss Probability

Even profitable strategies have losing streaks. This calculator shows you exactly how likely — and how severe — those streaks can be, so you're never surprised.

Calculator

Strategy Win Rate: 60%

10%90%

Number of Trades: 100

20500

Consecutive Losses	Probability of Exactly This Streak	Probability in 100 Trades
2 in a row	16.00%	99.9%
3 in a row	6.40%	89.0%
4 in a row	2.56%	47.7%
5 in a row	1.02%	18.6%
6 in a row	0.41%	6.6%
7 in a row	0.16%	2.3%
8 in a row	0.07%	0.8%
10 in a row	0.01%	0.1%

■ <5% — Unlikely■ 5–20% — Possible■ 20–50% — Likely■ >50% — Almost certain

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Your likely worst streak

3 consecutive losses→5.9% drawdown→$588 lost

Details ↓

Drawdown Impact Calculator

↑ Linked to calculator above

Based on your 60% win rate over 100 trades, the longest losing streak with >50% probability is 3 in a row. Here's what that costs you:

Account Size (USD): $10,000

Risk Per Trade: 2%

Account Size

$10,000

After 3 Losses

$588 lost

Drawdown %

5.9%

Why Losing Streaks Are Normal — and Expected

Even a highly profitable strategy will experience consecutive losses. This is not a sign the strategy has stopped working. It is a mathematical certainty.

→ The coin flip analogy

Consider a fair coin with 50% win rate. If you flip it 100 times, the probability of seeing at least 6 consecutive tails is approximately 97%. It's not bad luck — it's statistics. Trading is the same.

→ Most traders quit during the drawdown

Research shows the majority of traders abandon strategies precisely during normal losing streaks — exactly the worst time. They lock in losses and never experience the recovery. The calculator above helps you mentally prepare for what is mathematically inevitable.

→ Edge survives if sample size is large enough

A strategy with profit factor 1.5 and 60% win rate will be profitable over 100+ trades. But over any 10-trade sample, it can easily lose 7 or 8 in a row. The edge only becomes visible in aggregate. This is why we require minimum 20 trades for any published strategy, and why you should always look at strategies with 100+ trades.

→ The correct response to a losing streak

Review whether the market conditions have fundamentally changed. If not, and the strategy's fundamental logic is intact, continue following it with consistent position sizing. Panic-exiting during a drawdown is one of the most expensive mistakes a trader can make.

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The Core Lesson

Profitable trading is not about winning every trade. It is about having positive expected value and the discipline to let it play out over a large sample. Losing streaks are not a problem to solve — they are a cost to manage. Size your positions so that any realistic losing streak leaves you with enough capital to continue.

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