What happened: The Astros, Reds and Royals entered Monday among the five offenses most often correct on challenges. The Braves, Guardians, Pirates, Nationals and Padres ranked among the five most often wrong.

Why it matters: Challenge success reflects whether disputed calls are overturned, but the rankings alone do not establish broader offensive quality. They instead offer a snapshot of how effectively clubs have used MLB’s challenge system.

What to watch: Updated challenge results will show whether these early-season patterns persist through the second half.