Jack Leiter vs. Framber Valdez — Career Comparison

On the career pitching numbers, Framber Valdez posted a stronger line than Jack Leiter. Framber Valdez posted stronger numbers in ERA (3.36 vs 4.8) and WHIP (1.205 vs 1.361). By the career numbers, Framber Valdez 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.