Pop Andrews vs. Oliver Perez — Career Comparison

On the career pitching numbers, Pop Andrews posted a stronger line than Oliver Perez. Pop Andrews posted stronger numbers in ERA (3.68 vs 4.37) and home runs allowed (0.2 per nine innings vs 1.22). By the career numbers, Pop Andrews 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.