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Game Mechanics

Umpiring Strike Zone Pitching At-Bats Innings Batting Order Designated Hitter Ball and Strike System Automated Ball-Strike System Clue-Based Games

MLB To Pilot Check-Swing Challenges in Pacific Coast League Beginning May 5

Bat-tracking with a 45-degree definition, alongside two retained challenges, will replace subjective checked-swing calls in the test.

MLB Extends Checked-Swing Challenge to Triple-A PCL With 45-Degree Standard

ABS Trials Show Half of Challenges Overturned as Teams Refine Strategy

MLB Approves Automated Ball-Strike Challenges for 2026

Rangers Snap T-Mobile Park Skid With 11-Inning Win, Trail Series 2-1

MLB Debuts Ball-Strike Challenge System at All-Star Game

MLB Considers 'Golden At-Bat' Rule Allowing Star Players Key Late-Game Appearances

MLB Considers 'Golden At-Bat' Rule to Boost Star Power in Key Moments

MLB to Test Automated Strike Zone During 2025 Spring Training

Orioles' Dean Kremer Injured by Line Drive Against Rockies

MLB Considers Mandatory Six-Inning Minimum for Starting Pitchers