David Peterson vs. Mike Walker — Career Comparison

On the career pitching numbers, David Peterson posted a stronger line than Mike Walker. David Peterson posted stronger numbers in ERA (4.12 vs 7.36) and WHIP (1.376 vs 2.250). By the career numbers, David Peterson 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.