Erik Hamren vs. A. Jones — Career Comparison

On the career pitching numbers, A. Jones posted a stronger line than Erik Hamren. A. Jones posted stronger numbers in ERA (2 vs 4.38) and WHIP (1.222 vs 1.622). By the career numbers, A. Jones 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.