Ben McDonald vs. Roy Thomas — Career Comparison

Ben McDonald built a career as a starting pitcher and Roy Thomas as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ben McDonald led in walk avoidance (BB%+ 113 vs 90), run prevention (ERA+ 119 vs 100), and skill-based run prevention (DICE+ 105 vs 99). Roy Thomas held the edge in home run suppression (HR9+ 121 vs 105). Keeping the role difference in mind, the edge still goes to Ben McDonald.