David Hernandez vs. Arnie Portocarrero — Career Comparison

Arnie Portocarrero built a career as a starting pitcher and David Hernandez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Arnie Portocarrero led in home run suppression (HR9+ 90 vs 74), walk avoidance (BB%+ 105 vs 92), and run prevention (ERA+ 92 vs 83). David Hernandez held the edge in strikeout rate (K%+ 105 vs 75). Role difference aside, Arnie Portocarrero holds a clear edge on every meaningful shared measure.