Adam Peterson vs. Mike Proly — Career Comparison

Adam Peterson built a career as a starting pitcher and Mike Proly as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Proly posted stronger surface numbers — ERA 3.23 and WHIP 1.404 compared to 5.46 and 1.516 for Adam Peterson. By the career numbers, Mike Proly had the better of this cross-role comparison — though era context would sharpen the verdict.