A 70% win rate can still lose you money. Edge turns your win rate and average win/loss into your real expectancy per trade — and the exact win rate you'd need just to break even. Everything runs in your browser.
01 Your numbers
55%
R
R
02 Your edge
Expectancy per trade
0
—
Reward : risk ratio0
Break-even win rate0%
Your edge vs break-even0%
Expected per 100 trades0
How this works. Expectancy = (win% × average win) − (loss% × average loss). It's the average result you can expect per trade over many trades. A positive number means the strategy makes money long-run; negative means it bleeds, no matter how good the win rate looks. The break-even win rate = loss ÷ (win + loss) — the minimum win rate that keeps you from losing at your current reward:risk. Working in R (risk units) is the cleanest way to think about it: 1R = the amount you risk per trade, so a +2R win is twice your risk and a −1R loss is exactly your risk. Estimates assume consistent sizing; real results vary with position sizing, fees, and slippage. Not financial advice.