Dan Dumoulin vs. Mike Johnson — Career Comparison

Looking at the career totals, Dan Dumoulin and Mike Johnson are fairly close on the surface numbers. Mike Johnson posted stronger numbers in ERA (4.64 vs 7.84) and WHIP (2.297 vs 2.613). Dan Dumoulin had the advantage in home runs allowed (0 per nine innings vs 0.42). By the career numbers, Mike Johnson 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.