John Denny vs. Grant Jackson — Career Comparison

John Denny built a career as a starting pitcher and Grant Jackson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Denny led in home run suppression (HR9+ 122 vs 71), skill-based run prevention (DICE+ 95 vs 84), and run prevention (ERA+ 103 vs 92). Grant Jackson held the edge in strikeout rate (K%+ 79 vs 77). Role difference aside, John Denny holds a clear edge on every meaningful shared measure.