Net expectancy
Average every realised outcome after spread, commission, slippage, financing, and fees. Include no-fill and cancellation rules consistently.
Editorially reviewed 24 August 2026
Use realised distributions, not planned labels
DESK 09The familiar breakeven win-rate formula assumes one fixed win and one fixed loss. Real strategies contain partial exits, scratches, gaps, slippage, missed targets, financing, and variable stop distances. Calculate expectancy from each realised net outcome in R or account currency rather than multiplying a planned reward-to-risk label.
Keep uncertainty beside the point estimate. Bootstrap complete trade outcomes, preserving clusters when trades overlap, and report the interval around net expectancy, profit factor, and drawdown. A positive average whose plausible range crosses zero is evidence that more independent observations are needed.
Average every realised outcome after spread, commission, slippage, financing, and fees. Include no-fill and cancellation rules consistently.
Median, tails, and concentration matter. One outsized winner can support profit factor while most ordinary trades lose.
Two strategies with equal expectancy can have different drawdown because outcomes arrive in different sequences and clusters.
Win rate and risk-reward describe profitability only after the full net outcome distribution is measured.
Each cell shows the expected return per trade (in units of R). Green = profitable. Red = losing. Yellow = breakeven. R is your risk per trade — if you risk $10 per trade, a return of +0.2R means +$2 average profit per trade.
| Win Rate | R:R 1:1 | R:R 1:1.5 | R:R 1:2 | R:R 1:2.5 | R:R 1:3 | R:R 1:4 |
|---|---|---|---|---|---|---|
| 25% | −0.50R | −0.38R | −0.25R | −0.13R | 0.00R | +0.25R |
| 30% | −0.40R | −0.25R | −0.10R | +0.05R | +0.20R | +0.50R |
| 35% | −0.30R | −0.13R | +0.05R | +0.23R | +0.40R | +0.75R |
| 40% | −0.20R | 0.00R | +0.20R | +0.40R | +0.60R | +1.00R |
| 45% | −0.10R | +0.13R | +0.35R | +0.58R | +0.80R | +1.25R |
| 50% | 0.00R | +0.25R | +0.50R | +0.75R | +1.00R | +1.50R |
| 55% | +0.10R | +0.38R | +0.65R | +0.93R | +1.20R | +1.75R |
| 60% | +0.20R | +0.50R | +0.80R | +1.10R | +1.40R | +2.00R |
| 65% | +0.30R | +0.63R | +0.95R | +1.28R | +1.60R | +2.25R |
| 70% | +0.40R | +0.75R | +1.10R | +1.45R | +1.80R | +2.50R |
Notice: at 40% win rate with 1:2 R:R, expectancy is +0.20R — profitable. At 50% win rate with 1:1 R:R, expectancy is 0.00R — breakeven before costs, losing after spreads. The 40% strategy makes more money than the 50% strategy.
Example: 45% win rate, 1:2 R:R.
(0.45 × 2) − (1 − 0.45) = 0.90 − 0.55 = +0.35R per trade. Over 100 trades risking 1% each, that's +35% account growth (before compounding).
For any R:R ratio, the breakeven win rate is: 1 ÷ (R:R + 1). At 1:1 R:R, you need 1÷2 = 50% to breakeven. At 1:2 R:R, you need 1÷3 = 33%. At 1:3 R:R, you need 1÷4 = 25%. Lower R:R demands higher win rate. Higher R:R tolerates lower win rate. This is the fundamental trade-off in trading system design.
The matrix above assumes zero trading costs. Real trading costs subtract from every trade — typically 0.5-1.5 pips per trade for spread + commission. If your average risk per trade is 20 pips, a 1-pip cost reduces your effective R:R by approximately 5-10%.
A strategy showing +0.20R expectancy before costs at 1:2 R:R with 40% win rate might only be +0.10R after costs — still profitable, but half what the table suggests. Always discount your backtested numbers by 10-20% for real-world friction.
FXAbsolute auto-tracks your win rate, profit factor, average R:R, and drawdown across every trade. Run 200+ trades and see exactly where you land on the matrix.
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Measured from 28 million candles
Beginner exploration
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This page focuses on “What Win Rate and R:R Do You Actually Need to Be Profitable”.Calculate profitability from realised wins, losses, costs and path risk instead of a fixed RR label, with uncertainty and holdout checks.For “What Win Rate and R:R Do You Actually Need to Be Profitable”, a beginner should identify what the evidence guide measures, assumes or teaches before acting on its conclusion.Treat this page's account of “What Win Rate and R:R Do You Actually Need to Be Profitable” as a learning reference rather than a prediction, signal or promise of future performance.
For “What Win Rate and R:R Do You Actually Need to Be Profitable”, confirm the population, sample size, clock, units and calculation behind the headline number.While exploring “What Win Rate and R:R Do You Actually Need to Be Profitable”, compare the median, spread of outcomes and exceptions instead of reading only the average or best row.Keep your “What Win Rate and R:R Do You Actually Need to Be Profitable” record honest: use the statistic to frame a test or risk assumption, not to predict the next candle.Before leaving “What Win Rate and R:R Do You Actually Need to Be Profitable”, recheck the result on a separate period before turning a descriptive pattern into a rule.
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