John Farrell vs. Willis Roberts — Career Comparison

John Farrell built a career as a starting pitcher and Willis Roberts as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Farrell led in home run suppression (HR9+ 132 vs 113), skill-based run prevention (DICE+ 105 vs 94), and run prevention (ERA+ 101 vs 97). Role difference aside, John Farrell holds a clear edge on every meaningful shared measure.