Yilber Díaz vs. Ray Narleski — Career Comparison

Yilber Díaz built a career as a starting pitcher and Ray Narleski as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ray Narleski posted stronger surface numbers — ERA 3.6 and WHIP 1.372 compared to 4.31 and 1.468 for Yilber Díaz. By the career numbers, Ray Narleski had the better of this cross-role comparison — though era context would sharpen the verdict.