Is It Time for Baseball to Adopt Robot Umpires?

The case for robot umpires in baseball got some new interest this week — especially for Silicon Valley's baseball fans. As America settled in to watch the final inning of this year's National League Division Series, the Washington Post reports that (human) viewers saw a (human) umpire "call a third strike on a checked swing by San Francisco Giants infielder Wilmer Flores...ending the night, and season, of MLB's best team of 2021." (Though instead of swinging "Flores clearly appeared to hold up.") But the backlash raises the question of whether a so-called robo-umpire — essentially, a set of highly placed and well-programmed cameras — could have automatically adjudicated the checked swing... It's not a hypothetical question: MLB is in the middle of a three-year partnership with the independent Atlantic League for just such a robo-umpire, a system called Automatic Balls and Strikes (ABS), that this past season rendered a home-plate umpire moot for his most important job. MLB hasn't given a timetable for when the system could reach the big leagues, but it's clearly a trial balloon. ABS is overseen by TrackMan, a Denmark-based start-up that began by helping golfers with their swing and then expanded to baseball before broadening again to auto-officiating responsibilities. Under their ABS system, players are measured for a strike zone before the season, with their info then fed into the machine. Then, during the game, the company's sensor in the stands behind home plate uses Doppler technology to determine where the ball is thrown and where it should have been thrown based on the player's strike zone. The sensor then relays the call to, well, whoever wants to hear it. In the case of the Atlantic League, this is an actual umpire behind the plate who, in an ironic reversal, is a human who simply does what the machine tells him to do and announces the call. The system is not being used for checked swings, but the technology is equally applicable; it makes little difference whether a ball is crossing the plate in one direction or a bat crosses it the other way... But accuracy is only part of the equation. Presumably TrackMan could have made the right call — but what effect would such automation have on us socially? An argument can be made that it would increase consumer confidence and eliminate discord; an equal argument could be made the other way, that subjectivity is what makes the public realm, or at least baseball, a dynamic and interesting place. The Flores checked swing, in other words, gets at the question that stretches across much of innovation: Just because we could, does that mean we should? "Some fans have questioned whether judgment calls are part of the fun of baseball and a legalistic rendering is contrary to the spirit of the game," the article points out. And another issue: currently catchers will sometimes even move their glove with the caught ball so it looks like it passed through the strike zone when it didn't. (Or, as Deadspin puts it, "It's lying about where the pitch came in to fool the umpire into giving your team a strike when he shouldn't have." Though they call it "a beautiful art that defines the catcher position... and it will be rendered useless by the emergence of robot umpires.") Deadspin tracked down the President of TrackMan Baseball, who said that after an entire season of use in the Atlantic league, "Our system was accurate to about a half-inch, and we do this at hundreds of baseball stadiums every single day." But Deadspin worries that if it's actually implemented in Major League Baseball stadium, then pitchers would be afraid to throw borderline pitches, and would be forced to throw more balls over the plate. While endless hits and home runs might sound exciting, it would only lengthen an already slow sport, and the high that comes from witnessing incredible offensive feats would slowly fade as they would become more commonplace.

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