Lefty Guise vs. Al Mahon — Career Comparison

On the career pitching numbers, Lefty Guise posted a stronger line than Al Mahon. Lefty Guise posted stronger numbers in ERA (1.17 vs 22.85) and WHIP (1.696 vs 4.154). By the career numbers, Lefty Guise 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.