Jair Jurrjens vs. Bob Macdonald — Career Comparison

Jair Jurrjens built a career as a starting pitcher and Bob Macdonald as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jair Jurrjens led in home run suppression (HR9+ 143 vs 90), run prevention (ERA+ 125 vs 101), and skill-based run prevention (DICE+ 108 vs 94). Role difference aside, Jair Jurrjens holds a clear edge on every meaningful shared measure.