How MLB's and T-Mobile's ABS Challenge System Corrects Strike Calls in Seconds
Major League Baseball has introduced the Automatic Ball-Strike (ABS) challenge system, developed in collaboration with T-Mobile, to enhance the accuracy of strike calls. This technology, which uses 12 Hawk-Eye cameras and a private 5G network, allows players to challenge calls and receive instant feedback on the pitch's accuracy. The system has been implemented in all 29 MLB stadiums in the U.S., providing fans with real-time visuals of the pitch analysis.
- ▪The ABS challenge system was tested in over 7,000 minor league games before its major league debut.
- ▪It uses 12 Hawk-Eye cameras to track pitches and provides results on the big screen within seconds.
- ▪Currently, 53% of calls have been overturned by an ABS challenge this season.
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| Original publisher | CNET |
| Canonical URL | https://www.cnet.com/tech/mobile/how-mlbs-and-t-mobiles-abs-challenge-system-corrects-strike-calls-in-seconds/ |
| Publication time | Sat, 16 May 2026 12:00:58 +0000 |
| Retrieval time | 2026-05-16T12:55:18.509Z |
| Last seen | 2026-05-16T12:55:18.509Z |
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| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
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| Cluster | fmrkEQNR_TR9 |
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Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Baseball can be a game of physics and statistics, so I was surprised during a recent major league game in Seattle when a technical measurement sent the crowd into a tizzy.In the May 1 matchup, Kansas City Royals pitcher Cole Ragans threw a fastball to hitter Leo Rivas of the Seattle Mariners toward the bottom-left corner of the strike zone. The umpire called a strike, putting Rivas out -- until Rivas tapped his helmet twice.That gesture activated an Automatic Ball-Strike, or ABS, challenge to review the pitch, which must be triggered within seconds of the ball being caught. All eyes turned to the big screen to watch an animation of the pitch.
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