Isidro Marquez vs. John Taber — Career Comparison

On the career pitching numbers, John Taber posted a stronger line than Isidro Marquez. John Taber posted stronger numbers in ERA (4.15 vs 6.75) and WHIP (1.462 vs 1.650). By the career numbers, John Taber 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.