Oil Can Boyd vs. Alberto Castillo — Career Comparison

Oil Can Boyd built a career as a starting pitcher and Alberto Castillo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Oil Can Boyd posted stronger surface numbers — ERA 4.04 and WHIP 1.310 compared to 4.33 and 1.541 for Alberto Castillo. By the career numbers, Oil Can Boyd had the better of this cross-role comparison — though era context would sharpen the verdict.