Edwin Jackson vs. Marc Rzepczynski — Career Comparison

Edwin Jackson built a career as a starting pitcher and Marc Rzepczynski as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Marc Rzepczynski led in home run suppression (HR9+ 193 vs 93), run prevention (ERA+ 101 vs 83), and skill-based run prevention (DICE+ 101 vs 93). Role difference aside, Marc Rzepczynski holds a clear edge on every meaningful shared measure.