Mark Leiter vs. Tully Sparks — Career Comparison

On the career pitching numbers, Tully Sparks posted a stronger line than Mark Leiter. Tully Sparks posted stronger numbers in ERA (2.82 vs 4.57) and WHIP (1.229 vs 1.412). By the career numbers, Tully Sparks 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.