Joba Chamberlain vs. Lou Polli — Career Comparison

Looking at the career totals, Joba Chamberlain and Lou Polli are fairly close on the surface numbers. Joba Chamberlain posted stronger numbers in ERA (3.81 vs 4.68) and WHIP (1.408 vs 1.843). Lou Polli had the advantage in home runs allowed (0.64 per nine innings vs 0.92). By the career numbers, Joba Chamberlain 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.