Jack Kull vs. William Zay — Career Comparison

On the career pitching numbers, Jack Kull posted a stronger line than William Zay. Jack Kull posted stronger numbers in ERA (3 vs 9) and WHIP (2.667 vs 4.000). By the career numbers, Jack Kull 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.