John Halama vs. Casey Janssen — Career Comparison

John Halama 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. John Halama led in run prevention (ERA+ 105 vs 87), home run suppression (HR9+ 97 vs 85), and skill-based run prevention (DICE+ 96 vs 94). Casey Janssen held the edge in walk avoidance (BB%+ 171 vs 129). Keeping the role difference in mind, the edge still goes to John Halama.