Paul Penson vs. Bob Purkey — Career Comparison

Looking at the career totals, Paul Penson and Bob Purkey are fairly close on the surface numbers. Bob Purkey posted stronger numbers in ERA (3.79 vs 4.5) and WHIP (1.287 vs 1.750). Paul Penson had the advantage in home runs allowed (0.56 per nine innings vs 0.83). By the career numbers, Bob Purkey 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.