Pop-boy Smith vs. Pop Williams — Career Comparison

On the career pitching numbers, Pop Williams posted a stronger line than Pop-boy Smith. Pop Williams posted stronger numbers in ERA (3.17 vs 4.21) and WHIP (1.395 vs 1.447). By the career numbers, Pop Williams 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.