Duke Esper vs. Amos Willingham — Career Comparison

On the career pitching numbers, Duke Esper posted a stronger line than Amos Willingham. Duke Esper posted stronger numbers in ERA (4.39 vs 7.11) and WHIP (1.573 vs 1.895). By the career numbers, Duke Esper 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.