Gene Hayden vs. Slim McGrew — Career Comparison

On the career pitching numbers, Gene Hayden posted a stronger line than Slim McGrew. Gene Hayden posted stronger numbers in ERA (4.91 vs 6.6) and WHIP (1.636 vs 1.900). By the career numbers, Gene Hayden 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.