Dan Dumoulin vs. Jon Perlman — Career Comparison

Looking at the career totals, Dan Dumoulin and Jon Perlman are fairly close on the surface numbers. Jon Perlman posted stronger numbers in ERA (6.35 vs 7.84) and WHIP (1.866 vs 2.613). Dan Dumoulin had the advantage in home runs allowed (0 per nine innings vs 0.91). By the career numbers, Jon Perlman 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.