Rafael Valdez vs. Michael Wacha — Career Comparison

Michael Wacha built a career as a starting pitcher and Rafael Valdez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Michael Wacha posted stronger surface numbers — ERA 3.89 and WHIP 1.286 compared to 11.12 and 2.294 for Rafael Valdez. By the career numbers, Michael Wacha had the better of this cross-role comparison — though era context would sharpen the verdict.