Bruce Chen vs. Lewis Woolfolk — Career Comparison

Looking at the career totals, Bruce Chen and Lewis Woolfolk are fairly close on the surface numbers. Bruce Chen posted stronger numbers in ERA (4.62 vs 5.08) and WHIP (1.413 vs 1.506). Lewis Woolfolk had the advantage in home runs allowed (0.23 per nine innings vs 1.51). By the career numbers, Bruce Chen 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.