A. J. Achter vs. John Perkovich — Career Comparison

On the career pitching numbers, A. J. Achter posted a stronger line than John Perkovich. A. J. Achter posted stronger numbers in ERA (3.92 vs 7.2) and WHIP (1.484 vs 1.600). 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.