Rolando Arrojo vs. Tim Birtsas — Career Comparison

Rolando Arrojo 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. Rolando Arrojo led in home run suppression (HR9+ 114 vs 80), run prevention (ERA+ 110 vs 92), and skill-based run prevention (DICE+ 102 vs 90). Role difference aside, Rolando Arrojo holds a clear edge on every meaningful shared measure.