The Arizona Diamondbacks have struggled with catching this season, rotating through four catchers: Gabriel Moreno, Adrian Del Castillo, Jose Herrera, and Tucker Barnhart.

Moreno has emerged as the most effective, boasting the lowest catcher ERA at 4.39, while Del Castillo has the worst at 5.46. These stats highlight significant variances in how pitchers perform with different catchers.

The team is facing potential issues with their bullpen's effectiveness linked to the inconsistent catching situation, which could impact their playoff aspirations.