Al Jackson vs. Clayton Mortensen — Career Comparison

Al Jackson built a career as a starting pitcher and Clayton Mortensen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Al Jackson led in home run suppression (HR9+ 107 vs 63), walk avoidance (BB%+ 112 vs 87), and skill-based run prevention (DICE+ 95 vs 77). Clayton Mortensen held the edge in run prevention (ERA+ 106 vs 95). Keeping the role difference in mind, the edge still goes to Al Jackson.