Rudy Arias vs. Francisco Perez — Career Comparison

Looking at the career totals, Rudy Arias and Francisco Perez are fairly close on the surface numbers. Rudy Arias posted stronger numbers in ERA (4.09 vs 5.91) and WHIP (1.727 vs 1.781). Francisco Perez had the advantage in home runs allowed (0.56 per nine innings vs 1.43). By the career numbers, Rudy Arias 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.