David Aardsma vs. Ed Klepfer — Career Comparison

Ed Klepfer built a career as a starting pitcher and David Aardsma as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ed Klepfer posted stronger surface numbers — ERA 2.81 and WHIP 1.327 compared to 4.27 and 1.487 for David Aardsma. By the career numbers, Ed Klepfer had the better of this cross-role comparison — though era context would sharpen the verdict.