Jamie Moyer vs. Jim Peterson — Career Comparison

Jamie Moyer 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. Jamie Moyer posted stronger surface numbers — ERA 4.25 and WHIP 1.339 compared to 5.27 and 1.665 for Jim Peterson. By the career numbers, Jamie Moyer had the better of this cross-role comparison — though era context would sharpen the verdict.