John Perkovich vs. Johnny Ruffin — Career Comparison

On the career pitching numbers, Johnny Ruffin posted a stronger line than John Perkovich. Johnny Ruffin posted stronger numbers in ERA (4.13 vs 7.2) and WHIP (1.485 vs 1.600). By the career numbers, Johnny Ruffin 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.