Jack Aker vs. Jim Owens — Career Comparison

Jim Owens built a career as a starting pitcher and Jack Aker as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jim Owens led in home run suppression (HR9+ 130 vs 76), skill-based run prevention (DICE+ 106 vs 88), and run prevention (ERA+ 98 vs 89). Role difference aside, Jim Owens holds a clear edge on every meaningful shared measure.