Edwin Diaz vs. John Mitchell — Career Comparison

John Mitchell built a career as a starting pitcher and Edwin Diaz as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Edwin Diaz led in strikeout rate (K%+ 155 vs 68), run prevention (ERA+ 139 vs 94), and skill-based run prevention (DICE+ 140 vs 105). John Mitchell held the edge in home run suppression (HR9+ 173 vs 140). Keeping the role difference in mind, the edge still goes to Edwin Diaz.