George Perez vs. Jeff Wallace — Career Comparison

Looking at the career totals, George Perez and Jeff Wallace are fairly close on the surface numbers. Jeff Wallace posted stronger numbers in ERA (4.2 vs 5.4) and home runs allowed (0.72 per nine innings vs 1.08). George Perez had the advantage in WHIP (1.560 vs 1.745). By the career numbers, Jeff Wallace had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.