Cory Mazzoni vs. Harley Parker — Career Comparison

On the career pitching numbers, Harley Parker posted a stronger line than Cory Mazzoni. Harley Parker posted stronger numbers in ERA (5.9 vs 11.72) and WHIP (1.749 vs 2.368). By the career numbers, Harley Parker 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.