Zach Pop vs. Glenn Spencer — Career Comparison

Glenn Spencer built a career as a starting pitcher and Zach Pop as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Glenn Spencer posted stronger surface numbers — ERA 4.53 and WHIP 1.478 compared to 4.88 and 1.398 for Zach Pop. By the career numbers, Glenn Spencer had the better of this cross-role comparison — though era context would sharpen the verdict.