Art Doll vs. Ernie Koob — Career Comparison

Looking at the career totals, Art Doll and Ernie Koob are fairly close on the surface numbers. Ernie Koob posted stronger numbers in WHIP (1.348 vs 1.667) and home runs allowed (0.13 per nine innings vs 0.75). Art Doll had the advantage in ERA (3 vs 3.13). By the career numbers, Ernie Koob 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.