Players’ and managers’ efforts to work the umpires to contract or expand the strike zone have long been a part of the game.

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

Major League Baseball is using spring training to test an automated ball-strike system which lets players challenge an umpire’s call. Players and fans are divided at the thought of MLB completely ...

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

One big change for the St. Louis Cardinals' spring training experience this year is the arrival of an automated ball-strike ...

One of the things that the league has been testing this year is a robotic system to call balls and strikes. The Automated Ball-Strike System, which is based on the same technology used for line ...

MLB is rolling out automated ball-strike (ABS) technology in 13 spring training stadiums, the latest and most determinative step in a thorough testing process that could result in the ...

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

And this success has given the game a certain amount of confidence, even swagger, as it considers its latest radical experiment: the Automated Ball-Strike challenge system, or ABS for short.

How does the Automated Ball-Strike System work?Stadiums are outfitted with cameras that track each pitch and judge whether it crossed home plate within the strike zone. In early testing ...