Prelander Berroa vs. Roberto Rivera — Career Comparison

On the career pitching numbers, Prelander Berroa posted a stronger line than Roberto Rivera. Prelander Berroa posted stronger numbers in ERA (3.05 vs 4.5) and home runs allowed (0.87 per nine innings vs 1.5). By the career numbers, Prelander Berroa 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.