The Athletics had the highest success rate using the robot-umpire system to overturn ball/strike calls during the first 10 days of spring training, winning 69.2% of challenges as teams prepared for its regular-season debut March 25. San Francisco was second at 66.7%, followed by Cincinnati, Miami and San Diego at 61.9% each, Major League Baseball said Monday. The World Series champion Dodgers had the lowest rate, winning 21.4% of appeals to the Automated Ball-Strike System.
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