A. J. Achter vs. Tyler Robertson — Career Comparison

Looking at the career totals, A. J. Achter and Tyler Robertson are fairly close on the surface numbers. A. J. Achter had the edge in ERA (3.92 vs 5.54). By the career numbers, A. J. Achter had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.