Jake Arrieta vs. Kyle Martin — Career Comparison

Jake Arrieta built a career as a starting pitcher and Kyle Martin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kyle Martin posted stronger surface numbers — ERA 3.86 and WHIP 1.714 compared to 3.98 and 1.268 for Jake Arrieta. By the career numbers, Kyle Martin had the better of this cross-role comparison — though era context would sharpen the verdict.