Rocky Coppinger vs. Tyler Robertson — Career Comparison

Rocky Coppinger built a career as a starting pitcher and Tyler Robertson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Rocky Coppinger posted stronger surface numbers — ERA 5.47 and WHIP 1.626 compared to 5.54 and 1.500 for Tyler Robertson. By the career numbers, Rocky Coppinger had the better of this cross-role comparison — though era context would sharpen the verdict.