Bill Butler vs. Tiny Osborne — Career Comparison

Looking at the career totals, Bill Butler and Tiny Osborne are fairly close on the surface numbers. Bill Butler posted stronger numbers in ERA (4.21 vs 4.72) and WHIP (1.479 vs 1.560). Tiny Osborne had the advantage in home runs allowed (0.43 per nine innings vs 0.99). By the career numbers, Bill Butler 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.