GlossaryTraining

Thin sample

Too few decisions to trust a number: it is shown grayed out rather than hidden.

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What it means
A rate over a handful of decisions is mostly luck. The stats page marks any row or day with fewer than 20 decisions as thin, and any single hand in the hand grid with fewer than 10.
How it is calculated
Count the decisions behind a number. Below the floor, it is grayed and labeled thin, and it is left out of strengths and leak rankings.
Worked example
3 right out of 3 from the small blind reads as 100%, but one more miss would make it 75%. With 60 decisions, one miss moves it by under 2 points.
Why it matters
It stops you chasing noise. Fix the leaks that show up across many decisions, not the ones that appeared twice.

See also: Accuracy, EV loss per 100