Joe Cowley vs. Frank Stewart — Career Comparison

Looking at the career totals, Joe Cowley and Frank Stewart are fairly close on the surface numbers. Joe Cowley posted stronger numbers in ERA (4.2 vs 9) and WHIP (1.391 vs 2.250). Frank Stewart had the advantage in home runs allowed (0 per nine innings vs 1.32). By the career numbers, Joe Cowley 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.