Jim Abbott vs. Jeriome Robertson — Career Comparison

On the career pitching numbers, Jim Abbott posted a stronger line than Jeriome Robertson. Jim Abbott posted stronger numbers in ERA (4.25 vs 5.71) and WHIP (1.451 vs 1.660). By the career numbers, Jim Abbott 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.