What is a trade journal score?

P&L is a terrible discipline metric: it rewards a lucky rule break and punishes a disciplined loss. A journal score fixes that by measuring behavior directly — rule-compliance rate, the share of trades that followed a plan, the quality of entries, stops, and exits — and rolling it into one figure you can watch move week to week. Because it tracks process, it can rise on a red day and fall on a green one, which is exactly what makes it useful.

The inputs are self-reported. You grade whether you entered at the trigger, held the stop, and followed the exit rule; the score composes those honest grades. It is a mirror, not a surveillance tool — its accuracy depends on you being straight with yourself, and its value is that it gives discipline a number to chase.

Discipline decays when the only feedback is money, because money lags behavior by a sample size. A process score closes that gap: it responds the same session you tighten an entry or hold a stop, so good behavior gets reinforced immediately instead of waiting for the P&L to agree. Watching the number climb is the feedback loop that makes consistency self-reinforcing.

In Mettle this is the BRI score — Behavior, Risk, Income — shown as the dashboard hero. It rises as you follow your plan, respect your risk rules, and review your sessions, built from the behavioral tags and grades on each trade. It is a headline that rewards how you traded, not just whether the market cooperated.