Robot Umpires Are Ready. Can Baseball Handle This Curveball?
What is the Umpire's Role in Baseball and Softball Games?
Robot Umpires Could Be Coming to MLB as Soon as 2024 - CNET
2023 NFHS Baseball Umpires Manual Book, National Federation High School
Robot umpires are coming to Triple-A - Camden Chat
Umpires to announce replay reviews to fans
In this youth baseball league, fans who mistreat umpires are sentenced to do the job themselves
Four Tips for One-Umpire Mechanics
The hypocrisy of umpires complaining about players is obvious in their empty wristband protest
Players, just like fans, turn to Twitter after game to see how umpires did
MLB asking umpires for more checks of pitchers for sticky substances