Justin Hagenman vs. Roy Mahaffey — Career Comparison

Roy Mahaffey built a career as a starting pitcher and Justin Hagenman as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Justin Hagenman posted stronger surface numbers — ERA 4.56 and WHIP 1.099 compared to 5.01 and 1.546 for Roy Mahaffey. By the career numbers, Justin Hagenman had the better of this cross-role comparison — though era context would sharpen the verdict.