NEW YORK (AP) — Major League Baseball will test computer plate umpires during spring training but will not use the system for decisions in any exhibition games.
MLB experimented with the automated balls and strikes system during the second half of last season in the independent Atlantic League, and the Arizona Fall League used it for a few dozen games at Salt River Fields. The Major League Baseball Umpires Association agreed last month to cooperate and assist if Commissioner Rob Manfred decides to utilize the system at the major league level.
"We will be running the automated balls and strikes system only in test mode but will not actually use it to call balls and strikes in spring training games," the commissioner's office said in a statement. “It will be available in nine spring training facilities for later use during the Florida State League season.”
Plate umpires hear the computerized ball/strike calls via earpieces. The human umps decide on checked swings and other plays.
Manfred spoke about the system in an interview with Fox at the World Economic Forum in Davos, Switzerland.
"We believe over the long haul it's going to be more accurate. It will reduce controversy in the game and be good for the game," he said. "The current strike zone design is actually three-dimensional, and a camera is better at calling a three-dimensional strike zone than the human eye."