Peter Moylan vs. Harley Parker — Career Comparison

Looking at the career totals, Peter Moylan and Harley Parker are fairly close on the surface numbers. Peter Moylan posted stronger numbers in ERA (3.1 vs 5.9) and WHIP (1.395 vs 1.749). Harley Parker had the advantage in home runs allowed (0.33 per nine innings vs 0.64). By the career numbers, Peter Moylan 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.