Zach Jackson vs. Fred Martin — Career Comparison

Zach Jackson built a career as a starting pitcher and Fred Martin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Fred Martin posted stronger surface numbers — ERA 3.78 and WHIP 1.475 compared to 5.81 and 1.566 for Zach Jackson. By the career numbers, Fred Martin had the better of this cross-role comparison — though era context would sharpen the verdict.