Roy Oswalt vs. Wandy Peralta — Career Comparison

Roy Oswalt built a career as a starting pitcher and Wandy Peralta as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Roy Oswalt led in walk avoidance (BB%+ 143 vs 92), strikeout rate (K%+ 111 vs 73), and skill-based run prevention (DICE+ 117 vs 81). Wandy Peralta held the edge in home run suppression (HR9+ 120 vs 116). Role difference aside, Roy Oswalt holds a clear edge on every meaningful shared measure.