Fernando Arroyo vs. Casey Fien — Career Comparison

Fernando Arroyo built a career as a starting pitcher and Casey Fien as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Casey Fien led in walk avoidance (BB%+ 193 vs 132), strikeout rate (K%+ 100 vs 58), and run prevention (ERA+ 111 vs 96). Fernando Arroyo held the edge in home run suppression (HR9+ 91 vs 88). Role difference aside, Casey Fien holds a clear edge on every meaningful shared measure.