Duke Esper vs. Zac Gallen — Career Comparison

Zac Gallen built a career as a starting pitcher and Duke Esper as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Zac Gallen posted stronger surface numbers — ERA 3.58 and WHIP 1.161 compared to 4.39 and 1.573 for Duke Esper. By the career numbers, Zac Gallen had the better of this cross-role comparison — though era context would sharpen the verdict.