Mason Black vs. John Perkovich — Career Comparison

Mason Black 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. Mason Black posted stronger surface numbers — ERA 6.47 and WHIP 1.636 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Mason Black had the better of this cross-role comparison — though era context would sharpen the verdict.