Pierce Johnson vs. W. Williams — Career Comparison

Looking at the career totals, Pierce Johnson and W. Williams are fairly close on the surface numbers. Pierce Johnson posted stronger numbers in ERA (3.79 vs 6.35) and WHIP (1.356 vs 1.765). W. Williams had the advantage in home runs allowed (0 per nine innings vs 1.08). By the career numbers, Pierce Johnson 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.