Jairo Diaz vs. Amos Willingham — Career Comparison

On the career pitching numbers, Jairo Diaz posted a stronger line than Amos Willingham. Jairo Diaz posted stronger numbers in ERA (4.86 vs 7.11) and WHIP (1.556 vs 1.895). By the career numbers, Jairo Diaz 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.