Bill Dammann vs. John Perkovich — Career Comparison

On the career pitching numbers, Bill Dammann posted a stronger line than John Perkovich. Bill Dammann posted stronger numbers in ERA (4.06 vs 7.2) and home runs allowed (0.12 per nine innings vs 5.4). By the career numbers, Bill Dammann 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.