SCOTTSDALE — Major League Baseball is set to introduce its automated ball-strike (ABS) challenge system on Opening Day this season. This new system aims to improve accuracy and fairness in the game.
One exciting change is that teams will have an extra challenge in extra innings, even if they’ve already used their initial two challenges during the regular nine innings. Here’s how it works: if a team enters extra innings without a challenge, they will receive a new one for each inning. However, these do not stack, meaning they’ll only have one challenge per inning unless they still have their original challenges when the extra frames start.
Umpires will also have more flexibility. For instance, if a pitch is challenged, they can still call plays on the bases. This means a stolen base will likely stand no matter the pitch outcome, except in cases like a ball-four call being overturned. If a player’s behavior changes because of a call, such as a catcher pausing after hearing ball four, the umpire may send the runner back.
Interestingly, teams cannot challenge pitches if a position player is on the mound. Additionally, MLB is now measuring the height of players to create personalized strike zones, which will be slightly smaller than what umpires currently call. In instances where both a ball-strike challenge and a video replay challenge occur on the same play, the ABS call will be reviewed first.
Another key rule change addresses obstruction. If a runner intentionally makes contact with a fielder to force an obstruction call, the umpire will declare the runner out. This is important because it prevents players from exploiting the rules to gain an advantage.
Lastly, there’s a new rule for base coaches requiring them to stay in their boxes until a pitch is delivered. This change aims to reduce distractions during gameplay.
These adjustments reflect a growing trend in sports toward more precise technology and clearer rules. As MLB moves forward with these innovations, experts believe that they could significantly impact game strategies and player performances.
To help understand these changes, recent surveys show that fans are increasingly supportive of the use of technology in sports. According to a 2022 report, 68% of baseball fans support automated systems that enhance fairness and accuracy on the field.
For more insights into the impact of technology on sports, check out this study by The Pew Research Center.

