From the time in the 1800s when the relationship between pitcher and batter became adversarial, arguments about balls and strikes have been baked into baseball. So the Automated Ball-Strike (ABS) Challenge System powered by T-Mobile being implemented in MLB this year was a very long time coming.

Measuring players for ABS is a very precise system. Here's how it works.

MLB home plate umpires missing calls behind the dish is as frustrating an event as any for fans, players and managers to deal with. With that, having an automated balls and strikes (ABS) system in place makes it so that fewer games are swung by bad decisions.

In recent years, we've seen MLB become more receptive to the technology at its disposal. The league expanded the replay challenge rules, added a pitch clock and introduced Statcast to elevate how fans follow the game. It was only a matter of time until ...

MIAMI -- "Too late! Too late!" Split-second decisions were being tested on a daily basis at Marlins big league camp to prepare for the latest change to Major League Baseball: the Automated Ball-Strike (ABS) Challenge System.

As we enter the final week of the 2025 MLB regular season, the league has made a significant announcement, stating that it will implement an Automated Ball-Strike Challenge System for the entirety of the 2026 season. BREAKING: Major League Baseball will ...