Tommy John vs. Ron Willis — Career Comparison

Tommy John built a career as a starting pitcher and Ron Willis as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Tommy John led in walk avoidance (BB%+ 118 vs 80), skill-based run prevention (DICE+ 101 vs 90), and run prevention (ERA+ 110 vs 107). Ron Willis held the edge in strikeout rate (K%+ 78 vs 69). Keeping the role difference in mind, the edge still goes to Tommy John.