Robert Gibson vs. Michael Wacha — Career Comparison

Michael Wacha built a career as a starting pitcher and Robert Gibson 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 9.86 and 2.619 for Robert Gibson. By the career numbers, Michael Wacha had the better of this cross-role comparison — though era context would sharpen the verdict.