Jamie Arnold vs. Rogelio Martinez — Career Comparison

Rogelio Martinez built a career as a starting pitcher and Jamie Arnold as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jamie Arnold posted stronger surface numbers — ERA 5.73 and WHIP 1.652 compared to 27 and 4.500 for Rogelio Martinez. By the career numbers, Jamie Arnold had the better of this cross-role comparison — though era context would sharpen the verdict.