Jay Aldrich vs. William Matthews — Career Comparison

On the career pitching numbers, William Matthews posted a stronger line than Jay Aldrich. William Matthews posted stronger numbers in ERA (3.24 vs 4.72) and home runs allowed (0.54 per nine innings vs 0.99). By the career numbers, William Matthews 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.