Andrew Alvarez vs. Alberto Castillo — Career Comparison

Andrew Alvarez 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. Andrew Alvarez posted stronger surface numbers — ERA 2.31 and WHIP 1.114 compared to 4.33 and 1.541 for Alberto Castillo. By the career numbers, Andrew Alvarez had the better of this cross-role comparison — though era context would sharpen the verdict.