Ed Appleton vs. Frank Castillo — Career Comparison

Looking at the career totals, Ed Appleton and Frank Castillo are fairly close on the surface numbers. Ed Appleton posted stronger numbers in ERA (3.25 vs 4.56) and home runs allowed (0.19 per nine innings vs 1.07). Frank Castillo had the advantage in WHIP (1.378 vs 1.435). By the career numbers, Ed Appleton 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.