Mike O'Connor vs. Andy Van Hekken — Career Comparison

On the career pitching numbers, Andy Van Hekken posted a stronger line than Mike O'Connor. Andy Van Hekken posted stronger numbers in ERA (3 vs 5.3) and home runs allowed (0.6 per nine innings vs 1.34). By the career numbers, Andy Van Hekken 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.