Jimmy Key vs. David Phelps — Career Comparison

Jimmy Key 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. Jimmy Key led in walk avoidance (BB%+ 151 vs 99), run prevention (ERA+ 121 vs 96), and skill-based run prevention (DICE+ 102 vs 97). David Phelps held the edge in home run suppression (HR9+ 103 vs 93). Keeping the role difference in mind, the edge still goes to Jimmy Key.