Jack Harper vs. Mark Prior — Career Comparison

Mark Prior built a career as a starting pitcher and Jack Harper as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jack Harper posted stronger surface numbers — ERA 3.12 and WHIP 0.692 compared to 3.51 and 1.240 for Mark Prior. By the career numbers, Jack Harper had the better of this cross-role comparison — though era context would sharpen the verdict.