MLB, ABS and Ump

Fans loved how MLB's new ABS challenge system exposed the umpire's terrible call in real time
As part of the ABS system being tested in 60% of spring training games, teams are allocated two challenges for balls and strikes (retained with a successful challenge). With Andy Pages at the plate for the Dodgers, the outfielder took exception when home plate umpire Nate Tomlinson rung him up for a bases-loaded strikeout.
MLB Fans Loved How ABS Challenge System Showed Ump How Badly He Missed a Call
Major League Baseball is trying something new this spring as they're allowing teams to challenge two ball and strike calls per game with the ABS challenge system. Players, managers and fans have been growing more and more frustrated with umpires over the years and this step to at least experiment with the challenge system seems like a good move for everyone involved.
ABS challenge system latest MLB wrinkle after years of tests
An automated ball-strike challenge system is debuting in MLB's spring training this year, the latest development to come out of the league's testing partners, the Atlantic League and the Pioneer League.
What is ABS? Explaining MLB spring training challenge system
MLB will be testing an automatic balls and strikes challenge system this spring training. Here's how it works.
MLB’s ABS Challenge System Is Awesome
The challenge system is great. Called strike three to end the game gets challenged, call gets overturned, game continues, the camera pans to the downtrodden ump, and then the manager walks out to make a pitching change. Ump had to wait another 8 mins for the game to end. pic.twitter.com/wLhKM6Klp0
How MLB's ABS challenge system works in 2025 spring training, featuring Jahmai Jones
Detroit Tigers player Jahami Jones wins a challenge using the ABS system in spring training against New York Yankees on Feb. 23, 2025, in Tampa, Fla.
What is ABS? How MLB's ball-strike challenge system will work in spring training
ABS is MLB’s name for an automated strike zone — also known as robot umps. In a full ABS game, there will be a human umpire behind the plate, signaling the calls communicated through ABS. We won’t be seeing that full system in action this spring. Instead, teams will have a limited amount of challenges.
MLB to Use ABS Challenge System in Spring Training; Strike Zone Explained in Photos
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D-backs Minor Leaguers Share Experience with ABS Challenge System
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Yankees' Aaron Boone sounds off on using ABS challenge system to change call
New York Yankees manager Aaron Boone is intrigued by the idea of using a software system to help call balls and strikes.