John McGraw vs. Ariel Prieto — Career Comparison

Ariel Prieto built a career as a starting pitcher and John McGraw as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John McGraw posted stronger surface numbers — ERA 0 and WHIP 0.000 compared to 4.85 and 1.675 for Ariel Prieto. By the career numbers, John McGraw had the better of this cross-role comparison — though era context would sharpen the verdict.