John Perkovich vs. Scott Ruskin — Career Comparison

On the career pitching numbers, Scott Ruskin posted a stronger line than John Perkovich. Scott Ruskin posted stronger numbers in ERA (3.95 vs 7.2) and WHIP (1.513 vs 1.600). By the career numbers, Scott Ruskin 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.