Mark Leiter vs. Sidney Williams — Career Comparison

Looking at the career totals, Mark Leiter and Sidney Williams are fairly close on the surface numbers. Sidney Williams posted stronger numbers in ERA (4.28 vs 4.57) and home runs allowed (0.33 per nine innings vs 1.18). Mark Leiter had the advantage in WHIP (1.412 vs 1.610). By the career numbers, Sidney Williams 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.