How often do you need to be right?
Being right most of the time is not the goal, and it is not even necessary. What matters is the relationship between how often you win and how much you win when you do. This shows you exactly where that line sits.
Average winner divided by average loser.
Optional — leave it to see where you stand.
Fees, spread and slippage, in R.
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The trade-off, in one table
Every reward-to-risk ratio has a win rate below which it loses money, no matter how disciplined you are. Here is the line, before costs:
| Reward : risk | Break-even win rate | What that feels like |
|---|---|---|
| 0.5 : 1 | 66.7% | You must be right two times in three. Small, frequent wins and the occasional loss that erases a week. |
| 1 : 1 | 50.0% | A coin flip. Costs alone put you underwater. |
| 2 : 1 | 33.3% | You can be wrong twice as often as you are right and still be flat. |
| 3 : 1 | 25.0% | One in four. This is where most trend and breakout approaches live. |
| 5 : 1 | 16.7% | Wrong five times in six and still flat — but the losing streaks are long and psychologically brutal. |
Why a high win rate is not the goal
A 70% win rate sounds excellent and tells you nothing on its own. If the average winner is a third of the average loser, a 70% win rate loses money. Meanwhile a 30% win rate at 4:1 makes money comfortably — while feeling, day to day, like being wrong constantly.
This is the mismatch that ends most trading accounts. The approach that feels best is the one with the high win rate and the fat losers, because being right is pleasant. The arithmetic does not care how it feels.
Costs move the line more than you would think
At 1:1, a cost of 0.05R per trade pushes break-even from 50% to about 52.5%. That sounds small. Over a few hundred trades it is the difference between a flat account and a slowly bleeding one — and it is why high-frequency approaches on wide spreads rarely survive contact with a real broker.
The tighter your reward-to-risk, the more costs matter. At 3:1 the same friction barely registers.
Common questions
Where do I get my real win rate and average R?
From a journal, over at least thirty trades, with the losers included. Anything smaller is noise — a 60% win rate over ten trades is entirely consistent with a losing system. Use the R-multiple calculator to convert each trade first.
Should I aim for a bigger reward-to-risk ratio?
Not automatically. Raising the target lowers the win rate, because price has further to travel before it gets there. The two move together, and the combination that works is the one your actual results support — not the one that looks best in a table.
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