Jimmy Anderson vs. Jack O'Connor — Career Comparison

Jimmy Anderson 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. Jimmy Anderson led in home run suppression (HR9+ 137 vs 89), walk avoidance (BB%+ 92 vs 82), and skill-based run prevention (DICE+ 92 vs 86). Jack O'Connor held the edge in strikeout rate (K%+ 85 vs 56). Role difference aside, Jimmy Anderson holds a clear edge on every meaningful shared measure.