Henry Mathewson vs. Williams Perez — Career Comparison

Looking at the career totals, Henry Mathewson and Williams Perez are fairly close on the surface numbers. Henry Mathewson posted stronger numbers in ERA (4.91 vs 5.18) and home runs allowed (0 per nine innings vs 1.06). Williams Perez had the advantage in WHIP (1.515 vs 2.000). By the career numbers, Henry Mathewson 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.