Tim Birtsas vs. Jimmy Nelson — Career Comparison

Jimmy Nelson built a career as a starting pitcher and Tim Birtsas as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jimmy Nelson led in home run suppression (HR9+ 119 vs 80), skill-based run prevention (DICE+ 108 vs 90), and run prevention (ERA+ 105 vs 92). Role difference aside, Jimmy Nelson holds a clear edge on every meaningful shared measure.