Jim Henderson vs. Bruce Zimmermann — Career Comparison

Bruce Zimmermann built a career as a starting pitcher and Jim Henderson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jim Henderson posted stronger surface numbers — ERA 3.61 and WHIP 1.285 compared to 5.64 and 1.460 for Bruce Zimmermann. By the career numbers, Jim Henderson had the better of this cross-role comparison — though era context would sharpen the verdict.