Teams won 52.2% of their ball/strike challenges during the spring training test in the 288 exhibition games using the Automated Ball-Strike System.

The All-Star Game will demonstrate the automatic balls and strikes system that has been used in the minor leagues and during Spring Training

MLB is essentially porting over the ABS challenge system used during spring training for the upcoming All-Star Game in Atlanta. Human umpires will call balls and strikes as they normally would, but teams will be given two opportunities to challenge the call,