Diego Moreno vs. Francisco Perez — Career Comparison

Looking at the career totals, Diego Moreno and Francisco Perez are fairly close on the surface numbers. Diego Moreno posted stronger numbers in ERA (5.06 vs 5.91) and WHIP (1.250 vs 1.781). Francisco Perez had the advantage in home runs allowed (0.56 per nine innings vs 1.13). By the career numbers, Diego Moreno 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.