Charlie Kerfeld vs. Trevor McDonald — Career Comparison

Trevor McDonald 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. Trevor McDonald posted stronger surface numbers — ERA 1.5 and WHIP 0.889 compared to 4.2 and 1.572 for Charlie Kerfeld. By the career numbers, Trevor McDonald had the better of this cross-role comparison — though era context would sharpen the verdict.