Mark Leiter vs. Adrian Martinez — Career Comparison

On the career pitching numbers, Mark Leiter posted a stronger line than Adrian Martinez. Mark Leiter posted stronger numbers in ERA (4.57 vs 5.51) and WHIP (1.412 vs 1.482). By the career numbers, Mark Leiter 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.