Wondering exactly how baseball's "ABS challenge" system works? You've come to the right place.

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 ...

Just years after the ghost runner and pitch clock rules significantly changed the rhythm of baseball, shortening game length, ...

The Mets and all of Major League Baseball will have to navigate a new way to determine balls and strikes in 2026. Starting on Opening Day, the automatic ball and strike (ABS) challenge system will be ...

Major League Baseball's exhibition season gets underway Thursday afternoon, when the Chicago Cubs and Los Angeles Dodgers open up the Cactus League. (Grapefruit League action commences Friday.) This ...

Major League Baseball has done a lot of experimenting lately. Rule changes have been hitting the scene left and right. It wasn't until very recently that challenges were introduced into the sport, and ...

It's been a hotly debated topic ever since the coaches' challenge was introduced to Major League Baseball back in 2014. Now, the time has finally come. MLB has approved a new Automated Balls and ...

For some time now, an automated strike zone -- informally known as the "robo ump" -- has been used at the Triple-A level and on occasion at various other rungs of the minor leagues. Recently, MLB ...

With MLB’s competition committee expected to approve the automated ball-strike challenge system on Tuesday, it’s a good time to explain both how ABS works and clear up some of its misconceptions.