Robert Gasser vs. Michael Wacha — Career Comparison

On the career pitching numbers, Robert Gasser posted a stronger line than Michael Wacha. Robert Gasser posted stronger numbers in ERA (2.67 vs 3.89) and WHIP (1.129 vs 1.286). By the career numbers, Robert Gasser 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.