Bret Prinz vs. David Purcey — Career Comparison

On the career pitching numbers, David Purcey posted a stronger line than Bret Prinz. David Purcey posted stronger numbers in WHIP (1.578 vs 1.674) and home runs allowed (0.96 per nine innings vs 1.27). By the career numbers, David Purcey 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.