Isaiah Campbell vs. Harley Parker — Career Comparison

Looking at the career totals, Isaiah Campbell and Harley Parker are fairly close on the surface numbers. Isaiah Campbell posted stronger numbers in ERA (5.65 vs 5.9) and WHIP (1.535 vs 1.749). Harley Parker had the advantage in home runs allowed (0.33 per nine innings vs 1.26). By the career numbers, Isaiah Campbell 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.