David Phelps vs. Ariel Prieto — Career Comparison

Ariel Prieto built a career as a starting pitcher and David Phelps as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ariel Prieto led in home run suppression (HR9+ 145 vs 103), run prevention (ERA+ 107 vs 96), and skill-based run prevention (DICE+ 101 vs 97). David Phelps held the edge in walk avoidance (BB%+ 99 vs 80). Role difference aside, Ariel Prieto holds a clear edge on every meaningful shared measure.