Deolis Guerra vs. Ken Ray — Career Comparison

On the career pitching numbers, Deolis Guerra posted a stronger line than Ken Ray. Deolis Guerra posted stronger numbers in ERA (4.54 vs 5.13) and WHIP (1.239 vs 1.734). By the career numbers, Deolis Guerra 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.