David Hernandez vs. Glen Perkins — Career Comparison

The numbers give Glen Perkins a clear advantage over David Hernandez across the core pitching metrics. Glen Perkins led in walk avoidance (BB%+ 178 vs 92), run prevention (ERA+ 106 vs 83), and skill-based run prevention (DICE+ 105 vs 89). David Hernandez held the edge in strikeout rate (K%+ 105 vs 94). Glen Perkins was the better reliever — the numbers make that case clearly.