Bill Swift vs. Roy Witherup — Career Comparison

Looking at the career totals, Bill Swift and Roy Witherup are fairly close on the surface numbers. Bill Swift posted stronger numbers in ERA (3.58 vs 4.44) and WHIP (1.241 vs 1.454). Roy Witherup had the advantage in home runs allowed (0.17 per nine innings vs 0.57). By the career numbers, Bill Swift 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.