Merrill Kelly vs. Roy Witherup — Career Comparison

Looking at the career totals, Merrill Kelly and Roy Witherup are fairly close on the surface numbers. Merrill Kelly posted stronger numbers in ERA (3.77 vs 4.44) and WHIP (1.207 vs 1.454). Roy Witherup had the advantage in home runs allowed (0.17 per nine innings vs 1.16). By the career numbers, Merrill Kelly 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.