Terry Leach vs. Isidro Marquez — Career Comparison

On the career pitching numbers, Terry Leach posted a stronger line than Isidro Marquez. Terry Leach posted stronger numbers in ERA (3.15 vs 6.75) and WHIP (1.333 vs 1.650). By the career numbers, Terry Leach 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.