The umpire just lost his job to a camera. in the automated ball-strike system's first season, robot…
the umpire just lost his job to a camera. in the automated ball-strike system's first season, robot umpires overturned 54 percent of challenged calls, per oct 2 reporting.
the strike zone is now measured, not argued.
Context
AP reported on Oct 2 that robot umpires overturned 54 percent of challenged calls in the first season of the Automated Ball-Strike System, and that catchers were far more successful than batters. ESPN's version of the story says there were 10,557 challenges.
Coverage from the LA Times, ESPN and Yahoo Sports reviews the first ABS season, including which teams challenged best and how teams learned to time their appeals.
The 54 percent figure and the first season framing match the AP story carried by TSN, ESPN, Yahoo Sports and FOX Sports.
In the system as reported, humans still call every pitch and the camera is consulted on challenge. 'The strike zone is now measured, not argued' is the author's opinion.
Related work
- ESPN: robot umpires flip 54% of challenged calls ↗The AP story with team detail.
- ESPN: MLB ABS challenge rankings ↗Best and worst challengers.
- Yahoo Sports: a review of the first year of ABS challenges ↗Season review.
Watch next
- Compare catcher and batter success rates.
Sources
- TSN, Oct 2, 2026tsn.ca
- ESPNespn.com
- LA Times, Oct 7, 2026latimes.com
Provenance
The note above is reproduced unedited from the original post, first published on Threads on 10 October 2026 at 11:06 IST. Sources are the papers and datasets the note draws on.
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