Mike Flanagan vs. Jack O'Connor — Career Comparison

Mike Flanagan 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. Mike Flanagan led in walk avoidance (BB%+ 107 vs 82), run prevention (ERA+ 103 vs 80), and home run suppression (HR9+ 104 vs 89). Jack O'Connor held the edge in strikeout rate (K%+ 85 vs 82). Role difference aside, Mike Flanagan holds a clear edge on every meaningful shared measure.