Why Accuracy Alone Does Not Define a Strategy
The source explicitly demonstrates that a strategy does not need a very high percentage of winning trades if profitable trades are sufficiently larger than losing trades.
Validation principle
This is why win rate must be interpreted together with average win, average loss and trading costs. The source's 3R examples illustrate the relationship, but they do not prove that every strategy should target exactly 3R.
A validation dashboard should therefore display WIN_RATE, AVG_WIN_R, AVG_LOSS_R, EXPECTANCY_R and SAMPLE_SIZE together rather than promoting win rate as a standalone quality score.
Connected FX Nova modules
Educational software-engineering material. Source-specific numerical rules are identified as methodology rules; production thresholds require independent testing and sufficient data.