Javier Assad vs. Bill Campbell — Career Comparison

Javier Assad built a career as a starting pitcher and Bill Campbell as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Bill Campbell led in home run suppression (HR9+ 142 vs 111), walk avoidance (BB%+ 100 vs 83), and skill-based run prevention (DICE+ 101 vs 98). Javier Assad held the edge in run prevention (ERA+ 131 vs 98). Role difference aside, Bill Campbell holds a clear edge on every meaningful shared measure.