Kason Gabbard vs. Bob Shirley — Career Comparison

On the career pitching numbers, Bob Shirley posted a stronger line than Kason Gabbard. Bob Shirley posted stronger numbers in ERA (3.82 vs 4.53) and WHIP (1.429 vs 1.577). By the career numbers, Bob Shirley 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.