David Hernandez vs. Rich Robertson — Career Comparison

Rich Robertson built a career as a starting pitcher and David Hernandez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. David Hernandez led in strikeout rate (K%+ 105 vs 78), walk avoidance (BB%+ 92 vs 73), and skill-based run prevention (DICE+ 89 vs 87). Rich Robertson held the edge in home run suppression (HR9+ 107 vs 74). Keeping the role difference in mind, the edge still goes to David Hernandez.