Leo Hafford vs. Matt Zieser — Career Comparison

Leo Hafford built a career as a starting pitcher and Matt Zieser as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Leo Hafford posted stronger surface numbers — ERA 0.95 and WHIP 1.263 compared to 1.8 and 1.700 for Matt Zieser. By the career numbers, Leo Hafford had the better of this cross-role comparison — though era context would sharpen the verdict.