Here's what to know about MLB's robot umps. How does the Automated Ball-Strike System work? Stadiums are outfitted with cameras that track each pitch and judge whether it crossed home plate within the ...

MLB will introduce robot umpires in 2026 with the Automated Ball-Strike System. Human umpires make calls, but teams can challenge them to the computer. The technology has been tested in the minors, ...

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The World Series Game 4 home plate umpire isn't coming off a great performance. And early in Game 4, a few ball-strike calls already looked to be different than what the official strike zone dictated.

In the second inning of the Phillies’ 4-3 loss to the Arizona Diamondbacks on Saturday, Otto Kemp watched a fastball from Zac Gallen go by, well outside the strike zone. Strike three. If the automated ...

Stadiums are outfitted with cameras that track each pitch and judge whether it crossed home plate within the strike zone. In early testing, umpires wore ear buds and would hear “ball” or “strike,” ...