John Perkovich vs. Jack Pfiester — Career Comparison

Jack Pfiester 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. Jack Pfiester posted stronger surface numbers — ERA 2.02 and WHIP 1.089 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Jack Pfiester had the better of this cross-role comparison — though era context would sharpen the verdict.