John Perkovich vs. Rafael Roque — Career Comparison

Rafael Roque built a career as a starting pitcher and John Perkovich as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Rafael Roque posted stronger surface numbers — ERA 5.36 and WHIP 1.598 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Rafael Roque had the better of this cross-role comparison — though era context would sharpen the verdict.