Kris Foster vs. Adam Peterson — Career Comparison

On the career pitching numbers, Kris Foster posted a stronger line than Adam Peterson. Kris Foster posted stronger numbers in ERA (2.7 vs 16.88) and WHIP (1.700 vs 3.750). By the career numbers, Kris Foster 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.