Diego Castillo vs. Bruce Ruffin — Career Comparison

Bruce Ruffin built a career as a starting pitcher and Diego Castillo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Diego Castillo led in run prevention (ERA+ 131 vs 86), walk avoidance (BB%+ 112 vs 80), and strikeout rate (K%+ 119 vs 91). Bruce Ruffin held the edge in home run suppression (HR9+ 122 vs 112). Role difference aside, Diego Castillo holds a clear edge on every meaningful shared measure.