Zach Jackson vs. Clayton Mortensen — Career Comparison

Zach Jackson built a career as a starting pitcher and Clayton Mortensen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Clayton Mortensen posted stronger surface numbers — ERA 4.68 and WHIP 1.470 compared to 5.81 and 1.566 for Zach Jackson. By the career numbers, Clayton Mortensen had the better of this cross-role comparison — though era context would sharpen the verdict.