Fernando Arroyo vs. Grant Balfour — Career Comparison

Fernando Arroyo built a career as a starting pitcher and Grant Balfour as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Grant Balfour led in strikeout rate (K%+ 123 vs 58), home run suppression (HR9+ 123 vs 91), and run prevention (ERA+ 115 vs 96). Fernando Arroyo held the edge in walk avoidance (BB%+ 132 vs 83). Role difference aside, Grant Balfour holds a clear edge on every meaningful shared measure.