Humberto Castellanos vs. Ron Mahay — Career Comparison

Humberto Castellanos built a career as a starting pitcher and Ron Mahay as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ron Mahay posted stronger surface numbers — ERA 3.83 and WHIP 1.456 compared to 5.43 and 1.414 for Humberto Castellanos. By the career numbers, Ron Mahay had the better of this cross-role comparison — though era context would sharpen the verdict.