Jimmy Key vs. Casey Patten — Career Comparison

Looking at the career totals, Jimmy Key and Casey Patten are fairly close on the surface numbers. Casey Patten posted stronger numbers in ERA (3.36 vs 3.51) and home runs allowed (0.17 per nine innings vs 0.88). Jimmy Key had the advantage in WHIP (1.241 vs 1.315). By the career numbers, Casey Patten 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.