Jim Mann vs. Dewey Robinson — Career Comparison

On the career pitching numbers, Dewey Robinson posted a stronger line than Jim Mann. Dewey Robinson posted stronger numbers in ERA (4.05 vs 4.83) and WHIP (1.369 vs 1.484). By the career numbers, Dewey Robinson 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.