William Emmerich vs. Mac MacArthur — Career Comparison

Looking at the career totals, William Emmerich and Mac MacArthur are fairly close on the surface numbers. William Emmerich posted stronger numbers in ERA (4.85 vs 5.02) and WHIP (1.442 vs 1.500). Mac MacArthur had the advantage in home runs allowed (0.17 per nine innings vs 0.78). By the career numbers, William Emmerich 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.