Steve Jones vs. Michael Petersen — Career Comparison

On the career pitching numbers, Steve Jones posted a stronger line than Michael Petersen. Steve Jones posted stronger numbers in ERA (4.44 vs 5.02) and WHIP (1.469 vs 1.593). By the career numbers, Steve 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.