Fabio Castillo vs. Harley Parker — Career Comparison

Looking at the career totals, Fabio Castillo and Harley Parker are fairly close on the surface numbers. Harley Parker posted stronger numbers in ERA (5.9 vs 13.5) and WHIP (1.749 vs 3.000). Fabio Castillo had the advantage in home runs allowed (0 per nine innings vs 0.33). 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.