Zach Duke vs. Humberto Robinson — Career Comparison

Zach Duke built a career as a starting pitcher and Humberto Robinson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Humberto Robinson posted stronger surface numbers — ERA 3.25 and WHIP 1.385 compared to 4.31 and 1.474 for Zach Duke. By the career numbers, Humberto Robinson had the better of this cross-role comparison — though era context would sharpen the verdict.