John Gibbons vs. Brad Hennessey — Career Comparison

On the career pitching numbers, John Gibbons posted a stronger line than Brad Hennessey. John Gibbons posted stronger numbers in ERA (4.31 vs 4.69) and WHIP (1.436 vs 1.508). By the career numbers, John Gibbons 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.