Isidro Marquez vs. John Turner — Career Comparison

John Turner built a career as a starting pitcher and Isidro Marquez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Turner posted stronger surface numbers — ERA 1.56 and WHIP 0.750 compared to 6.75 and 1.650 for Isidro Marquez. By the career numbers, John Turner had the better of this cross-role comparison — though era context would sharpen the verdict.