Measure every trade in R — the amount you risk. Risk 100 to make 200 and you took a 2R trade. This one habit makes win rate stop mattering on its own: a 2R trader is profitable winning just 34% of the time; a 0.5R trader needs 67% wins just to break even. Most losing traders don't have a bad win rate — they have terrible R.
Using R in practice
- Decide the invalidation FIRST (where you're wrong), size from it, then check the target justifies the risk. Never backwards.
- Below 1R, be suspicious: you're paying more than you can win. It needs a very high-probability reason to exist.
- Track results in R, not dollars. '+3R this week on 12 trades' tells you if the PROCESS works at any account size.
The live odds on a mid-race entry ARE an R quote: a 3.0× multiplier is risking 1 to make 2 — the market's own price for the comeback. Reading it as R:R instead of 'a payout' is the professional lens.