Bob Macdonald vs. Robin Roberts — Career Comparison

Robin Roberts built a career as a starting pitcher and Bob Macdonald as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Bob Macdonald led in home run suppression (HR9+ 90 vs 76), run prevention (ERA+ 101 vs 88), and strikeout rate (K%+ 90 vs 84). Robin Roberts held the edge in walk avoidance (BB%+ 166 vs 100). Role difference aside, Bob Macdonald holds a clear edge on every meaningful shared measure.