Jason Johnson vs. Jack O'Connor — Career Comparison

Jason Johnson built a career as a starting pitcher and Jack O'Connor as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jason Johnson led in run prevention (ERA+ 92 vs 80), walk avoidance (BB%+ 89 vs 82), and home run suppression (HR9+ 94 vs 89). Role difference aside, Jason Johnson holds a clear edge on every meaningful shared measure.