Jack Leiter vs. Roy Patterson — Career Comparison

On the career pitching numbers, Roy Patterson posted a stronger line than Jack Leiter. Roy Patterson posted stronger numbers in ERA (2.75 vs 4.8) and WHIP (1.172 vs 1.361). By the career numbers, Roy Patterson 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.