Bret Prinz vs. Zach Putnam — Career Comparison

On the career pitching numbers, Zach Putnam posted a stronger line than Bret Prinz. Zach Putnam posted stronger numbers in ERA (3.2 vs 4.89) and WHIP (1.276 vs 1.674). By the career numbers, Zach Putnam 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.