John Perkovich vs. Scott Proctor — Career Comparison

On the career pitching numbers, Scott Proctor posted a stronger line than John Perkovich. Scott Proctor posted stronger numbers in ERA (4.78 vs 7.2) and WHIP (1.531 vs 1.600). By the career numbers, Scott Proctor 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.