T. J. Mathews vs. W. Williams — Career Comparison

Looking at the career totals, T. J. Mathews and W. Williams are fairly close on the surface numbers. T. J. Mathews posted stronger numbers in ERA (3.82 vs 6.35) and WHIP (1.371 vs 1.765). W. Williams had the advantage in home runs allowed (0 per nine innings vs 1.01). By the career numbers, T. J. Mathews 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.