Dave Heaverlo vs. Tom Johnson — Career Comparison

The numbers give Tom Johnson a clear advantage over Dave Heaverlo across the core pitching metrics. Tom Johnson led in walk avoidance (BB%+ 144 vs 113), skill-based run prevention (DICE+ 115 vs 99), and strikeout rate (K%+ 102 vs 96). Dave Heaverlo held the edge in run prevention (ERA+ 122 vs 113). Tom Johnson was the better reliever — the numbers make that case clearly.