Keith Atherton vs. Johnny Marcum — Career Comparison

Johnny Marcum built a career as a starting pitcher and Keith Atherton as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Keith Atherton posted stronger surface numbers — ERA 3.99 and WHIP 1.407 compared to 4.66 and 1.467 for Johnny Marcum. By the career numbers, Keith Atherton had the better of this cross-role comparison — though era context would sharpen the verdict.