How this works:
This section shows two different ways to evaluate pitch movement.
On the left, “Total Movement” shows the real-world movement of a pitch, including the forces of gravity, which affects every pitch thrown.
Since gravity requires time, and slower pitches aren't 'better' just because they have more time to move, a pitch's movement is compared to other pitches of the same pitch type, within +/- 2 MPH and +/- 0.5 feet of extension/release.
On the right, Induced Movement (or IVB) is reported without gravity, and attempts to isolate movement created by the pitcher's ability to spin and manipulate the ball.
These run values are leveraged, meaning the base/out situation at the time of the event does impact the run value (thus introducing context outside the batter's own contribution).
! Note: Shifts are through the 2022 season, Shaded starting from the 2023 season, Shift:
three or more infielders are on the same side of second base, Shade: positioned outside of
their typical responsible slices of the field. Learn more about
how positioning is defined here