John Perkovich vs. Robbie Ray — Career Comparison

Robbie Ray 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. Robbie Ray posted stronger surface numbers — ERA 3.94 and WHIP 1.303 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Robbie Ray had the better of this cross-role comparison — though era context would sharpen the verdict.