Since Opening Day, there have been more than 2,100 challenges in MLB’s ABS Challenge System, with 53% of challenged calls ...

When judging whether to challenge ball-strike calls, even players and managers disagree one month into the MLB season.

Padres closer Mason Miller saw his scoreless innings streak end at 34 2/3 innings after umpire Dan Merzel called a visibly foul ball fair, giving Matt Shaw an infield hit.

MLB acknowledged an apparent umpire error on a controversial fair-foul call during the Padres-Cubs game involving a dribbler down the third base line.

Challenging ball and strike calls has long been one of baseball’s time-honored traditions. Game momentum can change after what one team perceives as an errant ball or strike call. Managers get thrown ...

The ABS challenge system leaderboard ranks batters, pitchers, catchers, teams and umpires throughout the MLB season.