Jack Aker vs. Tim Leary — Career Comparison

Tim Leary 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. Jack Aker led in run prevention (ERA+ 89 vs 83), strikeout rate (K%+ 86 vs 81), and walk avoidance (BB%+ 100 vs 95). Tim Leary held the edge in home run suppression (HR9+ 85 vs 76). Role difference aside, Jack Aker holds a clear edge on every meaningful shared measure.