Dan Petry vs. Dereck Rodriguez — Career Comparison

On the career pitching numbers, Dan Petry posted a stronger line than Dereck Rodriguez. Dan Petry posted stronger numbers in ERA (3.95 vs 4.49) and home runs allowed (0.94 per nine innings vs 1.42). By the career numbers, Dan Petry 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.