Dellin Betances vs. Tanner Roark — Career Comparison

Tanner Roark built a career as a starting pitcher and Dellin Betances as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dellin Betances led in skill-based run prevention (DICE+ 187 vs 97), strikeout rate (K%+ 179 vs 90), and run prevention (ERA+ 190 vs 101). Tanner Roark held the edge in walk avoidance (BB%+ 122 vs 85). Role difference aside, Dellin Betances holds a clear edge on every meaningful shared measure.