Bob Shirley vs. Alfredo Simon — Career Comparison

The numbers give Bob Shirley a clear advantage over Alfredo Simon across the core pitching metrics. Bob Shirley led in strikeout rate (K%+ 98 vs 83), skill-based run prevention (DICE+ 93 vs 88), and run prevention (ERA+ 96 vs 91). Alfredo Simon held the edge in walk avoidance (BB%+ 94 vs 87). Bob Shirley was the better starter — the numbers make that case clearly.