Automated (or electronic) “Balls and Strikes”
is an interesting concept.
It has been in use in the minors for 2 years now.
I still do not understand how the system adjusts itself to
the changing size of the strike zone from batter-to-batter.
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MLB Rulebook:
“The official strike zone is the area over home plate
from the midpoint between a batter’s shoulders
and the top of the uniform pants;
when the batter is in his stance and prepared to swing
at a pitched ball; and a point just below the kneecap.”
The bottom of the zone will be set at 27% of a player’s height and the top set at 53.5% of their height.
Width is always 17 inches.