Jamie Arnold vs. Junior Guerra — Career Comparison

Junior Guerra built a career as a starting pitcher and Jamie Arnold as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Junior Guerra led in strikeout rate (K%+ 101 vs 46), run prevention (ERA+ 124 vs 79), and skill-based run prevention (DICE+ 105 vs 94). Jamie Arnold held the edge in home run suppression (HR9+ 320 vs 123). Keeping the role difference in mind, the edge still goes to Junior Guerra.