David Holmberg vs. Mike Pelfrey — Career Comparison

On the career pitching numbers, Mike Pelfrey posted a stronger line than David Holmberg. Mike Pelfrey posted stronger numbers in ERA (4.68 vs 5.49) and WHIP (1.528 vs 1.713). By the career numbers, Mike Pelfrey 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.