The challenge system will not be used in MLB games this season, but there is a good chance it will be implemented in 2026.

MLB debuts robot ump challenge system at Dodgers-Cubs spring training opener The Cubs went 1-for-2 on challenges in their first game with the system Story by Jack Baer Staff writer Thu, Feb 20 ...

The New York Yankees’ Jazz Chisholm Jr. showed how to confidently use the still-in-trial Automated Ball-Strike System (ABS) in a Spring Training game against the Boston Red Sox last week – so ...

One big change for the St. Louis Cardinals’ spring training experience this year is the arrival of an automated ball-strike system (ABS), unofficially known by some as robot umpires.

What did we learn from watching the robot umps — and talking to people throughout the game about ABS — this spring? Let's discuss!

Major League Baseball will test robot umpires as part of challenge system in spring training next year, which could lead to regular-season use in 2026, commissioner Rob Manfred said.