Ed Chapman vs. Joel Johnston — Career Comparison

On the career pitching numbers, Joel Johnston posted a stronger line than Ed Chapman. Joel Johnston posted stronger numbers in ERA (4.31 vs 8) and home runs allowed (1.05 per nine innings vs 2). By the career numbers, Joel Johnston 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.