Dan Dumoulin vs. Mike Koplove — Career Comparison

Looking at the career totals, Dan Dumoulin and Mike Koplove are fairly close on the surface numbers. Mike Koplove posted stronger numbers in ERA (3.82 vs 7.84) and WHIP (1.386 vs 2.613). Dan Dumoulin had the advantage in home runs allowed (0 per nine innings vs 0.67). By the career numbers, Mike Koplove 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.