Yoslan Herrera vs. Kevin Whelan — Career Comparison

On the career pitching numbers, Yoslan Herrera posted a stronger line than Kevin Whelan. Yoslan Herrera posted stronger numbers in ERA (6.43 vs 9) and WHIP (2.314 vs 3.333). By the career numbers, Yoslan Herrera 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.