These are historical per-period rates and splits for count:3-0, not a prediction and not an edge claim. descriptive_only: true.
as of 2025-09-28sample floor
An entity earns a descriptive card only after clearing a minimum-sample floor, so rates are not read off tiny samples. The floor for this pack is all 12 valid (balls 0-3) x (strikes 0-2) count states present in the pull included, no exclusion floor; smallest state has n=7,457 pitches league-wide, largest n=178,407. no per-pitch swing/miss field in this pull (no `description` column; `type` merges called+swinging+foul into one S bucket, `des` only fires on PA-ending pitches) -- outcome mix (ball/strike/in-play) substitutes. Entities below the floor are deliberately left off -- we do not print rates we cannot stand behind.