Alfredo Aceves vs. Adam Peterson — Career Comparison

Adam Peterson built a career as a starting pitcher and Alfredo Aceves as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Alfredo Aceves posted stronger surface numbers — ERA 3.83 and WHIP 1.230 compared to 5.46 and 1.516 for Adam Peterson. By the career numbers, Alfredo Aceves had the better of this cross-role comparison — though era context would sharpen the verdict.