Michael Lorenzen vs. Paul Penson — Career Comparison

Looking at the career totals, Michael Lorenzen and Paul Penson are fairly close on the surface numbers. Michael Lorenzen posted stronger numbers in ERA (4.08 vs 4.5) and WHIP (1.328 vs 1.750). Paul Penson had the advantage in home runs allowed (0.56 per nine innings vs 1.13). By the career numbers, Michael Lorenzen 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.