Atlas / MLB pitch types / pitch_type:ST

descriptive only

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

as of 2025-09-28

pitch_type:STMLB pitch typesas of 2025-09-28

n pitches

52681

pct of all pitches

7.6

velo p10

78.7

velo p50

82.7

velo p90

86.2

count leverage %

pitcher_ahead: 36.9, even: 44.4, pitcher_behind: 18.7

count state %

0-0: 24.48, 0-1: 14.53, 0-2: 9.58, 1-0: 7.7, 1-1: 10.49, 1-2: 12.74, 2-0: 1.75, 2-1: 4.12, 2-2: 9.48, 3-0: 0.09, 3-1: 0.85, 3-2: 4.19

outcome mix %

strike: 45.6, ball: 38.4, in-play: 16

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/st.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.