Ted Lilly vs. Bill Pierro — Career Comparison

Looking at the career totals, Ted Lilly and Bill Pierro are fairly close on the surface numbers. Ted Lilly posted stronger numbers in ERA (4.14 vs 10.55) and WHIP (1.273 vs 2.103). Bill Pierro had the advantage in home runs allowed (0.62 per nine innings vs 1.33). By the career numbers, Ted Lilly 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.