Seth Halvorsen vs. Kevin Whelan — Career Comparison

On the career pitching numbers, Seth Halvorsen posted a stronger line than Kevin Whelan. Seth Halvorsen posted stronger numbers in ERA (4.15 vs 9) and WHIP (1.404 vs 3.333). By the career numbers, Seth Halvorsen 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.