Tim Peterson vs. Bret Prinz — Career Comparison

Looking at the career totals, Tim Peterson and Bret Prinz are fairly close on the surface numbers. Bret Prinz posted stronger numbers in ERA (4.89 vs 5.91) and home runs allowed (1.27 per nine innings vs 2.31). Tim Peterson had the advantage in WHIP (1.457 vs 1.674). By the career numbers, Bret Prinz 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.