Bobby Castillo vs. John Denny — Career Comparison

John Denny 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. John Denny led in home run suppression (HR9+ 122 vs 85), run prevention (ERA+ 103 vs 88), and walk avoidance (BB%+ 93 vs 85). Bobby Castillo held the edge in strikeout rate (K%+ 106 vs 77). Role difference aside, John Denny holds a clear edge on every meaningful shared measure.