Atlas / MLB pitch types / pitch_type:FA

descriptive only

These are historical per-period rates and splits for pitch_type:FA, not a prediction and not an edge claim. descriptive_only: true.

as of 2025-09-28

pitch_type:FAMLB pitch typesas of 2025-09-28

n pitches

854

pct of all pitches

0.12

velo p10

58.5

velo p50

67.9

velo p90

79.8

count leverage %

pitcher_ahead: 17.2, even: 43.2, pitcher_behind: 39.6

count state %

0-0: 30.21, 0-1: 9.95, 0-2: 3.16, 1-0: 16.04, 1-1: 8.31, 1-2: 4.1, 2-0: 6.79, 2-1: 7.61, 2-2: 4.68, 3-0: 1.76, 3-1: 3.28, 3-2: 4.1

outcome mix %

ball: 38.8, strike: 33.4, in-play: 27.9

sample floor -- all 19 pitch_type codes in the 2025 pull included, no exclusion (missing pitch_type kept as 'UNK'); smallest category n=7 (SC) -- small-n cards carry high sampling noise, shown for completeness not comparison. 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) substitutesdownload card PNG -> docs/img/atlas/mlb_pitch/by_type/fa.png

sample floor

as of 2025-09-28

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 19 pitch_type codes in the 2025 pull included, no exclusion (missing pitch_type kept as 'UNK'); smallest category n=7 (SC) -- small-n cards carry high sampling noise, shown for completeness not comparison. 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.