Jairo Diaz vs. Pedro Martinez — Career Comparison

Pedro Martinez built a career as a starting pitcher and Jairo Diaz as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Pedro Martinez posted stronger surface numbers — ERA 2.93 and WHIP 1.065 compared to 4.86 and 1.556 for Jairo Diaz. By the career numbers, Pedro Martinez had the better of this cross-role comparison — though era context would sharpen the verdict.