Jon Lester vs. Ed Pierce — Career Comparison

Looking at the career totals, Jon Lester and Ed Pierce are fairly close on the surface numbers. Jon Lester posted stronger numbers in WHIP (1.283 vs 2.438) and home runs allowed (0.97 per nine innings vs 1.69). Ed Pierce had the advantage in ERA (3.38 vs 3.66). By the career numbers, Jon Lester 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.