Jacob deGrom vs. John Perkovich — Career Comparison

Jacob deGrom 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. Jacob deGrom posted stronger surface numbers — ERA 2.57 and WHIP 0.994 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Jacob deGrom had the better of this cross-role comparison — though era context would sharpen the verdict.