Jim Peterson vs. Ed Whitson — Career Comparison

Ed Whitson built a career as a starting pitcher and Jim Peterson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ed Whitson posted stronger surface numbers — ERA 3.79 and WHIP 1.336 compared to 5.27 and 1.665 for Jim Peterson. By the career numbers, Ed Whitson had the better of this cross-role comparison — though era context would sharpen the verdict.