Fernando Arroyo vs. Mark Esser — Career Comparison

Fernando Arroyo built a career as a starting pitcher and Mark Esser as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Fernando Arroyo posted stronger surface numbers — ERA 4.44 and WHIP 1.423 compared to 16.2 and 3.600 for Mark Esser. By the career numbers, Fernando Arroyo had the better of this cross-role comparison — though era context would sharpen the verdict.