John Halla vs. Kevin Whelan — Career Comparison

On the career pitching numbers, John Halla posted a stronger line than Kevin Whelan. John Halla posted stronger numbers in ERA (2.84 vs 9) and WHIP (0.947 vs 3.333). By the career numbers, John Halla 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.