John Perkovich vs. John Rheinecker — Career Comparison

John Rheinecker 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. John Rheinecker posted stronger surface numbers — ERA 5.65 and WHIP 1.769 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, John Rheinecker had the better of this cross-role comparison — though era context would sharpen the verdict.