Early MLB Challenge System Analysis: Who Excels at Contesting Calls?
An early look into MLB's challenge system reveals which teams are most successful at contesting umpire decisions.
We break down the early numbers on baseball's challenge system.
_Originally reported by [ESPN](https://www.espn.com/mlb/story/_/id/48807610/mlb-2026-abs-automated-balls-strikes-system-early-numbers-lessons-analytics)._
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