Don August vs. Casey Janssen — Career Comparison

Don August built a career as a starting pitcher and Casey Janssen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Casey Janssen led in walk avoidance (BB%+ 171 vs 101), strikeout rate (K%+ 76 vs 69), and skill-based run prevention (DICE+ 94 vs 89). Don August held the edge in run prevention (ERA+ 93 vs 87). Keeping the role difference in mind, the edge still goes to Casey Janssen.