Charlie Kerfeld vs. Erskine Mayer — Career Comparison

Erskine Mayer built a career as a starting pitcher and Charlie Kerfeld as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Erskine Mayer posted stronger surface numbers — ERA 2.96 and WHIP 1.233 compared to 4.2 and 1.572 for Charlie Kerfeld. By the career numbers, Erskine Mayer had the better of this cross-role comparison — though era context would sharpen the verdict.