Player stats
Fastball: Usage 2019
The percentage of all delivered pitches recorded as this type. Pitches with unknown types stay in the total. These percentages describe the recorded labels, so check type coverage. Uses pitches recorded as fastball.
At least 100 pitches of this type in this season. Recorded pitch types. Usage divides by all delivered pitches, including unknown types. Speed is in mph, spin in rpm and extension in feet. Averages use measured pitches only. Whiffs divide misses by swings.
No 2019 data
MLBDB does not have Fastball: Usage leaders for the 2019 season.
Understanding Fastball: Usage
The percentage of all delivered pitches recorded as this type. Pitches with unknown types stay in the total. These percentages describe the recorded labels, so check type coverage. Uses pitches recorded as fastball.
Formula: 100 × pitches of this recorded type ÷ all delivered pitches
Read rates alongside playing time. A small sample can produce an extreme result, and a missing value is different from zero.
Season rankings use regular-season records. A player has one combined row across teams; the team label identifies the associated team, not a separate team stint.
Source: MLB statistics and MLBDB derived measures. Formulas describe the measure above. Source refresh time is not available.