Dan Dumoulin vs. Howie Koplitz — Career Comparison

Howie Koplitz built a career as a starting pitcher and Dan Dumoulin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Howie Koplitz posted stronger surface numbers — ERA 4.21 and WHIP 1.563 compared to 7.84 and 2.613 for Dan Dumoulin. By the career numbers, Howie Koplitz had the better of this cross-role comparison — though era context would sharpen the verdict.