Art Doll vs. Bill Knowlton — Career Comparison

Looking at the career totals, Art Doll and Bill Knowlton are fairly close on the surface numbers. Art Doll posted stronger numbers in ERA (3 vs 4.76) and WHIP (1.667 vs 2.118). Bill Knowlton had the advantage in home runs allowed (0 per nine innings vs 0.75). By the career numbers, Art Doll 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.