Alfredo Aceves vs. Art Mahaffey — Career Comparison

Art Mahaffey 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 led in walk avoidance (BB%+ 118 vs 94), home run suppression (HR9+ 96 vs 79), and run prevention (ERA+ 106 vs 90). Art Mahaffey held the edge in strikeout rate (K%+ 102 vs 90). Role difference aside, Alfredo Aceves holds a clear edge on every meaningful shared measure.