Jack Leiter vs. Justin Verlander — Career Comparison

On the career pitching numbers, Justin Verlander posted a stronger line than Jack Leiter. Justin Verlander posted stronger numbers in ERA (3.32 vs 4.8) and WHIP (1.143 vs 1.361). By the career numbers, Justin Verlander 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.