Frank Bates vs. Pete Filson — Career Comparison

Looking at the career totals, Frank Bates and Pete Filson are fairly close on the surface numbers. Pete Filson posted stronger numbers in ERA (4.18 vs 6.33) and WHIP (1.432 vs 2.082). Frank Bates had the advantage in home runs allowed (0.28 per nine innings vs 1.17). By the career numbers, Pete Filson 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.