Charlie Kerfeld vs. Del Mason — Career Comparison

Del Mason 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. Del Mason posted stronger surface numbers — ERA 3.72 and WHIP 1.429 compared to 4.2 and 1.572 for Charlie Kerfeld. By the career numbers, Del Mason had the better of this cross-role comparison — though era context would sharpen the verdict.