Metrics Flashcards
ax0
The initial acceleration of the pitch along the x-axis (horizontal, toward home plate) immediately after release.
ay0
The initial acceleration of the pitch along the y-axis (vertical, downward) immediately after release.
az0
The initial acceleration of the pitch along the z-axis (side to side) immediately after release.
Ball Flight Time
The time it takes for a pitch to travel from the pitcher’s hand to the catcher’s mitt.
Batted Ball Data
Records how the ball is hit when struck, including launch angle, exit velocity, and the resulting play type.
Bauer Units
The ratio of spin rate to velocity, helping assess the efficiency of spin relative to the speed of the pitch.
Eff Velocity
Adjusts the perceived velocity of a pitch based on its location in the strike zone and the timing of the pitch.
HorzMvmt
Refers to the total side-to-side movement of a pitch, measured in inches, from the pitcher’s perspective.
HorzApprAngle
The angle at which the pitch moves horizontally as it approaches home plate, indicating the pitch’s movement left or right.
HorzRelAngle
The angle at which the ball is released in a horizontal plane, relative to the pitcher’s body.
IVM
Induced Vertical Movement measures how much a pitch drops compared to a ball thrown without spin.
Pitch%
The distribution of different types of pitches thrown during a game or over a season.
Pitch Eff
Metrics that analyze how effective pitches are in terms of achieving strikes, inducing weak contact, or strikeouts.
Pitch Seq
Information about the sequence of pitches thrown, useful for pattern analysis and understanding pitcher strategy.
Pitch Type
Identifies the type of pitch thrown based on movement characteristics and release parameters.
Pitch Pace
Time taken between pitches, influencing the rhythm of the game and batter timing.
PlateLoc
The precise location where the pitch crosses the plate in terms of x, y, and z coordinates.
Plate Spd
The speed of the pitch as it crosses home plate, which can be different from the release speed.
Release Ext
Measures the distance from the pitching rubber to the pitcher’s hand at the moment of release.
Release Ht
The height at which the ball is released from the pitcher’s hand.
Release Side
The lateral position, relative to the pitching rubber, from which the pitch is released.
Release Spd
The velocity of the pitch as it is released from the pitcher’s hand.
Spin Eff %
Refers to the percentage of the spin that is contributing effectively to the movement of the pitch. High spin efficiency means that a large portion of the spin is being translated into movement.
Spin Score
Evaluates the quality of a pitch’s spin in contributing to its movement. It might be calculated based on the alignment of the spin axis with the pitch’s trajectory.
