MLB umpires willing to let computers call balls and strikes

Opinion: Baseball's robo-umpire debate isn't about humans vs. non-humans. It's about two visions of humanness - The Globe and Mail

As MLB moves toward using 'robot umpire,' getting strike/ball calls right is the goal

Yankees broadcast baffled after umpire calls ball on pitch down middle

Automated strike zone: Arizona Diamondbacks minor leaguers test it out

Major League Baseball is nearing the era of the robot umpire

Umpires get ball/strike calls wrong 14% of the time, study finds - Los Angeles Times

Robot umpires' debut in independent Atlantic League

MLB computer plate umpires take step forward

Automated ball-strike system challenge system a hit in AFL