Ryan O'Malley vs. Otto Rettig — Career Comparison

On the career pitching numbers, Ryan O'Malley posted a stronger line than Otto Rettig. Ryan O'Malley posted stronger numbers in ERA (2.13 vs 4.91) and WHIP (1.342 vs 1.636). By the career numbers, Ryan O'Malley 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.