Art Doll vs. John Koronka — Career Comparison

On the career pitching numbers, Art Doll posted a stronger line than John Koronka. Art Doll posted stronger numbers in ERA (3 vs 6.25) and home runs allowed (0.75 per nine innings vs 1.31). 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.