Grant Jackson vs. Roger Samuels — Career Comparison

On the career pitching numbers, Grant Jackson posted a stronger line than Roger Samuels. Grant Jackson posted stronger numbers in ERA (3.46 vs 4.33) and home runs allowed (0.72 per nine innings vs 1.67). By the career numbers, Grant Jackson 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.