Joel Davis vs. Tommy John — Career Comparison

On the career pitching numbers, Tommy John posted a stronger line than Joel Davis. Tommy John posted stronger numbers in ERA (3.34 vs 4.91) and WHIP (1.304 vs 1.514). By the career numbers, Tommy John 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.