Henry Mathewson vs. Carson Spiers — Career Comparison

Looking at the career totals, Henry Mathewson and Carson Spiers are fairly close on the surface numbers. Henry Mathewson posted stronger numbers in ERA (4.91 vs 5.69) and home runs allowed (0 per nine innings vs 1.85). Carson Spiers had the advantage in WHIP (1.573 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.