MLB ABS Challenge System Explained: How Automated Ball-Strike Challenges Work in Baseball

Saw a hitter, catcher, or pitcher tap their helmet after a pitch and wondered what just happened. Here’s a clear guide to MLB ...

MLB 2026: Best, worst automated balls-and-strikes challenges

Baseball's new ABS system is the talk of the sport. We hand out awards after the first weekend of the rule.

ABS Challenge rules: How does the Automated Ball-Strike Challenge System work in 2026 MLB season?

Major League Baseball is bringing technology to the mound in 2026 as the ABS Challenge System lets pitchers, catchers and ...

'Robot umps'? See how MLB's new ABS challenge system works

The high-speed-camera technology that lets players challenge pitch calls makes its full-time major-league debut this season.
The Big Lead

MLB announces that they will no longer show if a pitch is a ball or strike during game broadcasts with ABS taking over

The ABS operator sits in the press box at LECOM Park during a spring training game between the Pittsburgh Pirates and Philadelphia Phillies on Friday, Mar. 7, 2025. Major League Baseball is testing an ...

MLB brings ABS to regular season: Everything to know about the automated ball/strike challenge system

Plus, how successful were challenges during spring training?