Dan Dumoulin vs. Joe Keener — Career Comparison

Joe Keener 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. Dan Dumoulin posted stronger surface numbers — ERA 7.84 and WHIP 2.613 compared to 10.38 and 3.462 for Joe Keener. By the career numbers, Dan Dumoulin had the better of this cross-role comparison — though era context would sharpen the verdict.