This page displays a pitcher’s average arm angle at the time of pitch release, with 0° being perfectly horizontal to the flat ground (a sidearmer) and 90° being straight over the top.
Arm angle is defined as a horizontal line extending from the location of the pitcher’s throwing shoulder and the location of ball at the time of the pitch.
Center of mass is normalized in the large visual and does not imply every pitcher is standing in the same place on the mound.
This data is available since 2020; a full list of seasonal arm angles may be found here.
