Dan Dumoulin vs. Adam Peterson — Career Comparison

On the career pitching numbers, Dan Dumoulin posted a stronger line than Adam Peterson. Dan Dumoulin posted stronger numbers in ERA (7.84 vs 16.88) and WHIP (2.613 vs 3.750). By the career numbers, Dan Dumoulin 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.