Fabio Castillo vs. Marshall Renfroe — Career Comparison

Marshall Renfroe built a career as a starting pitcher and Fabio Castillo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Fabio Castillo posted stronger surface numbers — ERA 13.5 and WHIP 3.000 compared to 27 and 3.000 for Marshall Renfroe. By the career numbers, Fabio Castillo had the better of this cross-role comparison — though era context would sharpen the verdict.