John Perkovich vs. Unknown Ritchie — Career Comparison

On the career pitching numbers, Unknown Ritchie posted a stronger line than John Perkovich. Unknown Ritchie posted stronger numbers in ERA (5.14 vs 7.2) and WHIP (0.429 vs 1.600). By the career numbers, Unknown Ritchie 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.