Brett Martin vs. Jim Shellenback — Career Comparison

Jim Shellenback built a career as a starting pitcher and Brett Martin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Brett Martin led in walk avoidance (BB%+ 148 vs 86), skill-based run prevention (DICE+ 116 vs 97), and run prevention (ERA+ 107 vs 98). Role difference aside, Brett Martin holds a clear edge on every meaningful shared measure.