John Doyle vs. Matt Swarmer — Career Comparison

Matt Swarmer built a career as a starting pitcher and John Doyle as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Doyle posted stronger surface numbers — ERA 2.63 and WHIP 1.833 compared to 5.03 and 1.588 for Matt Swarmer. By the career numbers, John Doyle had the better of this cross-role comparison — though era context would sharpen the verdict.