John Perkovich vs. Ron Rightnowar — Career Comparison

On the career pitching numbers, Ron Rightnowar posted a stronger line than John Perkovich. Ron Rightnowar posted stronger numbers in ERA (5.4 vs 7.2) and WHIP (1.527 vs 1.600). By the career numbers, Ron Rightnowar 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.