When the first spring training games begin this week, something new will be in use: an automated ball-strike umpiring system. After years of trials in the minor leagues, it gets a major league test.

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

MLB will test an automated ball-strike (ABS) challenge system this spring in order to gather data to determine whether or not to implement the system during regular season big league games, although ...

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

A system for hitters, catchers and pitchers to challenge balls and strikes is being tested in some spring training ballparks.