Dave Boswell vs. Bobby Castillo — Career Comparison

Dave Boswell built a career as a starting pitcher and Bobby Castillo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dave Boswell led in strikeout rate (K%+ 131 vs 106), run prevention (ERA+ 103 vs 88), and home run suppression (HR9+ 97 vs 85). Bobby Castillo held the edge in walk avoidance (BB%+ 85 vs 81). Role difference aside, Dave Boswell holds a clear edge on every meaningful shared measure.