Bill Butler vs. Gunboat Thompson — Career Comparison

On the career pitching numbers, Gunboat Thompson posted a stronger line than Bill Butler. Gunboat Thompson posted stronger numbers in ERA (3.41 vs 4.21) and WHIP (1.424 vs 1.479). By the career numbers, Gunboat Thompson 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.