Mike Duvall vs. Dale Polley — Career Comparison

Looking at the career totals, Mike Duvall and Dale Polley are fairly close on the surface numbers. Mike Duvall posted stronger numbers in ERA (4.76 vs 7.89) and home runs allowed (1.06 per nine innings vs 2.08). Dale Polley had the advantage in WHIP (1.615 vs 1.863). By the career numbers, Mike Duvall 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.