Slick Castleman vs. Rich Hill — Career Comparison

Looking at the career totals, Slick Castleman and Rich Hill are fairly close on the surface numbers. Rich Hill posted stronger numbers in ERA (4.02 vs 4.25) and WHIP (1.278 vs 1.478). Slick Castleman had the advantage in home runs allowed (0.69 per nine innings vs 1.12). By the career numbers, Rich Hill 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.