MLB’s Automated Ball Strike System Shines in Recent Game
This past Saturday, Major League Baseball’s Automated Ball Strike System (ABS) had a notable moment during spring training. In a matchup between the Cleveland Guardians and the San Francisco Giants in Scottsdale, Arizona, Robbie Ray was pitching against Sean Mooney. With the game tied at 3-3 and two outs in the top of the fourth, the count was at 0-2.
Mooney swung at a low sinker that home plate umpire Bill Miller called a ball. However, catcher Patrick Bailey decided to challenge the call. It’s worth noting that only batters, catchers, and pitchers are allowed to appeal, and they have to do it almost immediately. Each team gets two challenges, keeping the correct ones.
Miller informed the crowd about the Giants’ challenge to escape the inning but accidentally left his microphone on during the announcement, which led to a humorous moment. He said, “Go on strike,” only to realize he had been heard by everyone. Bailey had quite the laugh at that too.
Interestingly, Miller was actually hoping for his original call to be reversed, but perhaps the scorching temperatures in Scottsdale, which were over 100 degrees, were influencing his wish for a more comfortable situation.
Despite the challenge, Miller stood by his call, which he accurately judged to within three-tenths of an inch. A couple of pitches later, Mooney struck out, bringing a brief moment of calm back to the game.
The ABS system has gone through years of testing, especially in the minor leagues and the Arizona Fall League. Now, it is set to be used during the regular season, after being introduced in spring training last year. This system tailors the strike zone to each batter’s height and may result in changes to the listed measurements for several players.
The Giants are set to host the New York Yankees on Wednesday, with the rest of the teams beginning their seasons the following day.

