Grant Balfour vs. Bret Prinz — Career Comparison

On the career pitching numbers, Grant Balfour posted a stronger line than Bret Prinz. Grant Balfour posted stronger numbers in ERA (3.49 vs 4.89) and WHIP (1.245 vs 1.674). By the career numbers, Grant Balfour 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.