Zach Jackson vs. Kazuhiro Sasaki — Career Comparison

Zach Jackson built a career as a starting pitcher and Kazuhiro Sasaki as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kazuhiro Sasaki posted stronger surface numbers — ERA 3.14 and WHIP 1.142 compared to 5.81 and 1.566 for Zach Jackson. By the career numbers, Kazuhiro Sasaki had the better of this cross-role comparison — though era context would sharpen the verdict.