Brian Keyser vs. Guido Knudson — Career Comparison

On the career pitching numbers, Brian Keyser posted a stronger line than Guido Knudson. Brian Keyser posted stronger numbers in ERA (4.97 vs 18) and WHIP (1.684 vs 3.400). By the career numbers, Brian Keyser 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.