Alexis Diaz vs. Mark Leiter — Career Comparison

Mark Leiter built a career as a starting pitcher and Alexis Diaz as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Alexis Diaz led in home run suppression (HR9+ 148 vs 80), run prevention (ERA+ 150 vs 92), and skill-based run prevention (DICE+ 107 vs 93). Mark Leiter held the edge in walk avoidance (BB%+ 105 vs 73). Role difference aside, Alexis Diaz holds a clear edge on every meaningful shared measure.