David Carpenter vs. Erik Swanson — Career Comparison

The numbers give David Carpenter a clear advantage over Erik Swanson across the core pitching metrics. David Carpenter led in home run suppression (HR9+ 118 vs 95), run prevention (ERA+ 152 vs 130), and strikeout rate (K%+ 127 vs 109). Erik Swanson held the edge in walk avoidance (BB%+ 152 vs 127). David Carpenter was the better reliever — the numbers make that case clearly.