Ian Anderson vs. Jack O'Connor — Career Comparison

Ian 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. Ian Anderson led in home run suppression (HR9+ 114 vs 89), run prevention (ERA+ 99 vs 80), and skill-based run prevention (DICE+ 98 vs 86). Jack O'Connor held the edge in walk avoidance (BB%+ 82 vs 76). Role difference aside, Ian Anderson holds a clear edge on every meaningful shared measure.