Jason Jennings vs. Tom Johnson — Career Comparison

Jason Jennings built a career as a starting pitcher and Tom Johnson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Tom Johnson led in walk avoidance (BB%+ 144 vs 82), skill-based run prevention (DICE+ 115 vs 95), and run prevention (ERA+ 113 vs 93). Role difference aside, Tom Johnson holds a clear edge on every meaningful shared measure.