Porfi Altamirano vs. Robin Roberts — Career Comparison

Robin Roberts 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. Robin Roberts led in walk avoidance (BB%+ 166 vs 104), skill-based run prevention (DICE+ 93 vs 86), and run prevention (ERA+ 88 vs 86). Porfi Altamirano held the edge in strikeout rate (K%+ 96 vs 84). Keeping the role difference in mind, the edge still goes to Robin Roberts.