Risk to Reward and Win Rate: The Relationship Nobody Explains Properly
A 70% win rate can lose money. A 35% win rate can be excellent. Here is the arithmetic.
Traders compare win rates the way footballers compare goals. It feels like the number that matters. On its own it is close to meaningless.
What the two numbers do together
Risk to reward tells you what a winner pays relative to what a loser costs. Win rate tells you how often you win. Neither is useful alone; together they tell you whether the method makes money.
The break-even win rate for any risk to reward ratio:
| Risk : Reward | Break-even win rate |
|---|---|
| 1 : 0.5 | 66.7% |
| 1 : 1 | 50% |
| 1 : 1.5 | 40% |
| 1 : 2 | 33.3% |
| 1 : 3 | 25% |
| 1 : 5 | 16.7% |
A trader winning 7 out of 10 at 1:0.5 is barely break-even before costs. A trader winning 3 out of 10 at 1:3 is comfortably profitable.
The second trader feels like they are losing constantly. That is the psychological problem at the centre of this whole subject.
Why high win rates feel so good and pay so badly
Winning often is pleasant. Being right is pleasant. So traders drift towards methods that produce frequent small wins, then take profit early to keep the streak alive, then hold a loser because closing it breaks the run.
That is how a 70% win rate turns into a losing month. The wins are trimmed and the losses are full size.
Expectancy is the number that matters
Expectancy = (Win Rate × Average Win) − (Loss Rate × Average Loss)
A method winning 40% of the time with a $300 average win and a $150 average loss:
(0.40 × 300) − (0.60 × 150) = 120 − 90 = $30 per trade
Every trade is worth $30 on average. That is the only figure that predicts whether trading more will help or hurt.
Where planned and actual diverge
Most traders' actual risk to reward is worse than their planned risk to reward, for two reasons:
- Taking profit early. A 1:3 plan closed at 1:1.2 because the trade wobbled
- Widening the stop. A 1:3 plan that became 1:1.5 when the stop was moved
Both feel like risk management in the moment. Both are the opposite. If you log planned R:R alongside actual R:R, the gap between them is usually the single largest leak in the account.
You cannot control the win rate. The market decides that. You can control the risk to reward almost completely, because it is set before you enter.
Practical targets
- Below 1:1, you need a genuinely high win rate and tight costs. Possible, but unforgiving
- 1:1.5 to 1:2 suits most discretionary approaches
- 1:3 and above works, but expect long losing runs and size accordingly
What to do with this
Log both numbers for thirty trades: what you planned and what you got. If the actual is consistently below the planned, the problem is not your entries. It is what you do after you are in.
Fixing that is usually worth more than any new indicator.
Not financial advice. This article is educational. Trading carries substantial risk and you can lose more than your deposit. See our risk disclaimer.
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