Yennsy Diaz vs. Rube Parnham — Career Comparison

Rube Parnham built a career as a starting pitcher and Yennsy Diaz as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Rube Parnham posted stronger surface numbers — ERA 4.04 and WHIP 1.710 compared to 5.96 and 1.675 for Yennsy Diaz. By the career numbers, Rube Parnham had the better of this cross-role comparison — though era context would sharpen the verdict.