Full Breakdown
MLB Introduces New Challenge System for Minor League Games
3/19/2026, 5:19:35 PM
Overview of the New Challenge System
Major League Baseball (MLB) is set to implement a new "Check Swing Challenge" system during the 2023 season, aimed at addressing disputes over whether a batter has swung at a pitch. This initiative will be tested in the Pacific Coast League, with the Salt Lake Bees among the teams participating. The system will officially debut on May 5, 2023, and will utilize technology to track the trajectory of a bat, allowing players to challenge umpire calls regarding swings.
Mechanics of the Challenge System
Under the new system, each team will be granted two challenges per game that can be used on balls, strikes, or swing calls during an at-bat. If a challenge successfully overturns an umpire's decision, the team retains that challenge. The league has clarified the definition of a swing, stating that it will be called when the maximum angle between the bat head and the bat handle exceeds 45 degrees. This change aims to reduce ambiguity and frustration surrounding swing calls, which have often been subjective.
Background and Context
The "Check Swing Challenge" system builds on previous testing conducted in the Florida State League and the Arizona Fall League, where it reportedly led to a 3% decrease in strikeout rates, resulting in more balls being put in play. The Salt Lake Bees will first implement this system at home games starting May 12, 2023, against El Paso.
Additional Rule Changes in Minor Leagues
In addition to the Check Swing Challenge, MLB is testing several other rule changes across minor league games this season. These include adjustments to pitch clock regulations, where umpires will not wait for batters to be ready before restarting the clock after a timeout. Furthermore, Double-A pitchers will be limited to one disengagement attempt per at-bat to prevent base stealing, with subsequent failed attempts awarding the runner a base.
Criticism & Opposition
While the new challenge system aims to enhance the accuracy of calls, some critics argue that it may slow down the pace of play, which has been a concern in recent years. The implementation of technology in officiating also raises questions about the potential for over-reliance on systems that may not always be foolproof.
Official Statements & Responses
MLB officials have expressed optimism regarding the new challenge system, emphasizing its potential to improve the game experience for players and fans alike. The league stated, "A swing will be called when the maximum angle between the bat head and the bat handle is greater than 45 degrees," highlighting the effort to standardize swing calls.
What's Next
As the Salt Lake Bees and other teams begin testing the Check Swing Challenge and other new regulations, MLB will monitor the outcomes to determine if these changes will be adopted in major league play in the future. The success of these initiatives could influence the evolution of game rules at the highest levels of baseball.
