Calvin Jones vs. Duke Maas — Career Comparison

Duke Maas built a career as a starting pitcher and Calvin Jones as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Duke Maas posted stronger surface numbers — ERA 4.19 and WHIP 1.422 compared to 4.33 and 1.528 for Calvin Jones. By the career numbers, Duke Maas had the better of this cross-role comparison — though era context would sharpen the verdict.