Dan Dumoulin vs. Katsy Keifer — Career Comparison

Katsy Keifer 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. Katsy Keifer posted stronger surface numbers — ERA 2 and WHIP 0.889 compared to 7.84 and 2.613 for Dan Dumoulin. By the career numbers, Katsy Keifer had the better of this cross-role comparison — though era context would sharpen the verdict.