Alfredo Aceves vs. Francisco Perez — Career Comparison

Looking at the career totals, Alfredo Aceves and Francisco Perez are fairly close on the surface numbers. Alfredo Aceves posted stronger numbers in ERA (3.83 vs 5.91) and WHIP (1.230 vs 1.781). Francisco Perez had the advantage in home runs allowed (0.56 per nine innings vs 1.14). By the career numbers, Alfredo Aceves 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.