Ben Callahan vs. Tyler Robertson — Career Comparison

Ben Callahan 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. Tyler Robertson posted stronger surface numbers — ERA 5.54 and WHIP 1.500 compared to 12.54 and 2.571 for Ben Callahan. By the career numbers, Tyler Robertson had the better of this cross-role comparison — though era context would sharpen the verdict.