Bob Kaiser vs. Kevin Whelan — Career Comparison

On the career pitching numbers, Bob Kaiser posted a stronger line than Kevin Whelan. Bob Kaiser posted stronger numbers in ERA (4.5 vs 9) and WHIP (1.833 vs 3.333). By the career numbers, Bob Kaiser 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.