Sports ❯ Baseball ❯ Officiating

Umpires

Controversial Calls Controversies Jen Pawol Automated Ball-Strike Challenge System Actions C. B. Bucknor Female Umpires Challenge System Derek Thomas Chad Fairchild ABS Challenge System C.B. Bucknor John Bacon Replay Technology CB Bucknor

MLB’s ABS Now Feeds Live Guidance to Umpires as Overturn Lists Grow

Two-way umpire-to-ABS audio now delivers on-the-spot strike zone corrections.

Giants Contest Catwalk Call at Tropicana as Ump Ejects Houser and Pitching Director

ABS Reversal Turns Mets’ Bases-Loaded Walk Into Inning-Ending Strike

ABS Challenge Tests Overturn Calls as Teams Split on Strategy Before MLB Rollout

First Woman Umpire’s Plate Debut Draws Scrutiny Over Accuracy Metrics

Controversial Ejections Overshadow Cubs’ 4-0 Loss to Tigers

Javier Baez’s Ejection Prompts Calls to Remove Umpire Phil Cuzzi