Mark Leiter Jr. vs. Bill Smith — Career Comparison

Looking at the career totals, Mark Leiter Jr. and Bill Smith are fairly close on the surface numbers. Bill Smith posted stronger numbers in ERA (4.21 vs 4.6) and home runs allowed (1.05 per nine innings vs 1.4). Mark Leiter Jr. had the advantage in WHIP (1.351 vs 1.507). By the career numbers, Bill Smith 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.