Mike Duvall vs. Guido Knudson — Career Comparison

On the career pitching numbers, Mike Duvall posted a stronger line than Guido Knudson. Mike Duvall posted stronger numbers in ERA (4.76 vs 18) and WHIP (1.863 vs 3.400). 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.