Michael Kopech vs. Ken Lehman — Career Comparison

Michael Kopech built a career as a starting pitcher and Ken Lehman as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ken Lehman posted stronger surface numbers — ERA 3.91 and WHIP 1.449 compared to 4.14 and 1.333 for Michael Kopech. By the career numbers, Ken Lehman had the better of this cross-role comparison — though era context would sharpen the verdict.