Odalis Perez vs. Ed Pierce — Career Comparison

Looking at the career totals, Odalis Perez and Ed Pierce are fairly close on the surface numbers. Odalis Perez posted stronger numbers in WHIP (1.367 vs 2.438) and home runs allowed (1.09 per nine innings vs 1.69). Ed Pierce had the advantage in ERA (3.38 vs 4.46). By the career numbers, Odalis Perez 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.