RoboUmp Hits the Big Leagues - 99% Invisible
Briefly

RoboUmp Hits the Big Leagues - 99% Invisible
In Major League Baseball, umpires are responsible for calling balls and strikes, with the home plate umpire having a crucial role. A study revealed umpires make about 14 incorrect calls per game, totaling 34,000 errors annually. These mistakes can significantly impact game outcomes. To enhance accuracy, MLB has implemented a camera system known as the Automated Ball-Strike (ABS) system, allowing players to appeal human calls. This technology, similar to missile-guidance systems, accurately determines a ball's location and was previously tested in minor leagues before its MLB introduction.
"A blown strike call can decide a win or a loss, a championship or long and sad off-season. This year, Major League Baseball has introduced a new system to help improve the accuracy of ball-and-strike calls."
"The 'robots' are actually a camera system called ABS, or 'Automated Ball-Strike.' The system is similar to missile-guidance technology, and can pinpoint a ball's location with startling accuracy."
"Back in 2023, 99% Invisible first covered this story, when the ABS system was introduced in baseball's minor leagues. Now, with its arrival in the MLB, we revisit that story."
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