Casey Janssen vs. Jim Shellenback — Career Comparison

Jim Shellenback 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. Jim Shellenback led in home run suppression (HR9+ 138 vs 85), run prevention (ERA+ 98 vs 87), and skill-based run prevention (DICE+ 97 vs 94). Casey Janssen held the edge in walk avoidance (BB%+ 171 vs 86). Role difference aside, Jim Shellenback holds a clear edge on every meaningful shared measure.