Joe Bitker vs. John Perkovich — Career Comparison

On the career pitching numbers, Joe Bitker posted a stronger line than John Perkovich. Joe Bitker posted stronger numbers in ERA (4.73 vs 7.2) and WHIP (1.500 vs 1.600). By the career numbers, Joe Bitker 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.