John Halama vs. Ben Kozlowski — Career Comparison

On the career pitching numbers, John Halama posted a stronger line than Ben Kozlowski. John Halama posted stronger numbers in ERA (4.65 vs 6.3) and WHIP (1.474 vs 2.200). By the career numbers, John Halama 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.