Elmer Knetzer vs. Izzy Leon — Career Comparison

On the career pitching numbers, Elmer Knetzer posted a stronger line than Izzy Leon. Elmer Knetzer posted stronger numbers in ERA (3.15 vs 5.35) and WHIP (1.334 vs 1.759). By the career numbers, Elmer Knetzer 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.