Porfi Altamirano vs. Al Jackson — Career Comparison

Al Jackson built a career as a starting pitcher and Porfi Altamirano as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Al Jackson led in home run suppression (HR9+ 107 vs 83), run prevention (ERA+ 95 vs 86), and skill-based run prevention (DICE+ 95 vs 86). Porfi Altamirano held the edge in strikeout rate (K%+ 96 vs 76). Role difference aside, Al Jackson holds a clear edge on every meaningful shared measure.