Merrill Kelly vs. Bob Macdonald — Career Comparison

Merrill Kelly 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. Merrill Kelly led in home run suppression (HR9+ 111 vs 90), skill-based run prevention (DICE+ 107 vs 94), and run prevention (ERA+ 114 vs 101). Role difference aside, Merrill Kelly holds a clear edge on every meaningful shared measure.