John Perkovich vs. Jack Ryan — Career Comparison

Jack Ryan 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 Ryan posted stronger surface numbers — ERA 2.94 and WHIP 1.248 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Jack Ryan had the better of this cross-role comparison — though era context would sharpen the verdict.