Paul Boris vs. John Perkovich — Career Comparison

On the career pitching numbers, Paul Boris posted a stronger line than John Perkovich. Paul Boris posted stronger numbers in ERA (3.99 vs 7.2) and WHIP (1.369 vs 1.600). By the career numbers, Paul Boris 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.