Boof Bonser vs. Zach Penrod — Career Comparison

Boof Bonser built a career as a starting pitcher and Zach Penrod as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Zach Penrod posted stronger surface numbers — ERA 2.25 and WHIP 1.750 compared to 5.18 and 1.471 for Boof Bonser. By the career numbers, Zach Penrod had the better of this cross-role comparison — though era context would sharpen the verdict.