Umpires first began calling both balls and strikes way back in 1864, and baseballers have been arguing about those calls ever ...

The Automated Ball-Strike (ABS) challenge system is being tested in just over half of the scheduled Grapefruit and Cactus ...

Thirteen spring stadiums and over 60% of Cactus and Grapefruit League games will feature an automated ball-strike (ABS) challenge system.

This spring training will introduce a new element to the action: for the first time, MLB will employ the automated ball-strike system (ABS for short) during big-league contests. ABS is ...

We’ve never lived in a world in which major-league spring training games had balls and strikes called by robot umps, otherwise known as the Automated Ball-Strike system (ABS). But it’ll happen ...