Fernando Arroyo vs. Sean Marshall — Career Comparison

Fernando Arroyo built a career as a starting pitcher and Sean Marshall as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sean Marshall led in strikeout rate (K%+ 99 vs 58), home run suppression (HR9+ 114 vs 91), and skill-based run prevention (DICE+ 109 vs 93). Fernando Arroyo held the edge in walk avoidance (BB%+ 132 vs 113). Role difference aside, Sean Marshall holds a clear edge on every meaningful shared measure.