Jimmy Boyd vs. Alberto Castillo — Career Comparison

Jimmy 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. Jimmy Boyd posted stronger surface numbers — ERA 1.29 and WHIP 0.857 compared to 4.33 and 1.541 for Alberto Castillo. By the career numbers, Jimmy Boyd had the better of this cross-role comparison — though era context would sharpen the verdict.