Kenley Jansen vs. J. J. Putz — Career Comparison

The numbers give J. J. Putz a clear advantage over Kenley Jansen across the core pitching metrics. J. J. Putz led in walk avoidance (BB%+ 130 vs 119), home run suppression (HR9+ 109 vs 101), and skill-based run prevention (DICE+ 121 vs 114). Kenley Jansen held the edge in run prevention (ERA+ 128 vs 123). J. J. Putz was the better reliever — the numbers make that case clearly.