Dan Dumoulin vs. Unknown Johnson — Career Comparison

On the career pitching numbers, Unknown Johnson posted a stronger line than Dan Dumoulin. Unknown Johnson posted stronger numbers in ERA (0 vs 7.84) and WHIP (2.000 vs 2.613). By the career numbers, Unknown 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.