Bert Blyleven vs. Dan Dumoulin — Career Comparison

Bert Blyleven 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. Bert Blyleven posted stronger surface numbers — ERA 3.31 and WHIP 1.212 compared to 7.84 and 2.613 for Dan Dumoulin. By the career numbers, Bert Blyleven had the better of this cross-role comparison — though era context would sharpen the verdict.