Brett Marshall vs. Kevin Whelan — Career Comparison

On the career pitching numbers, Brett Marshall posted a stronger line than Kevin Whelan. Brett Marshall posted stronger numbers in ERA (4.5 vs 9) and WHIP (1.667 vs 3.333). By the career numbers, Brett Marshall 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.