Unknown Arthur vs. Luis Castillo — Career Comparison

Luis Castillo built a career as a starting pitcher and Unknown Arthur as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Unknown Arthur posted stronger surface numbers — ERA 0 and WHIP 1.000 compared to 3.55 and 1.183 for Luis Castillo. By the career numbers, Unknown Arthur had the better of this cross-role comparison — though era context would sharpen the verdict.