Dan Dumoulin vs. Jay Marshall — Career Comparison

Looking at the career totals, Dan Dumoulin and Jay Marshall are fairly close on the surface numbers. Jay Marshall posted stronger numbers in ERA (7.66 vs 7.84) and WHIP (1.845 vs 2.613). Dan Dumoulin had the advantage in home runs allowed (0 per nine innings vs 0.73). By the career numbers, Jay Marshall 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.