Seth Maness vs. Fernando Valenzuela — Career Comparison

Fernando Valenzuela built a career as a starting pitcher and Seth Maness as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Seth Maness led in walk avoidance (BB%+ 200 vs 80), run prevention (ERA+ 123 vs 95), and skill-based run prevention (DICE+ 105 vs 91). Fernando Valenzuela held the edge in strikeout rate (K%+ 79 vs 74). Role difference aside, Seth Maness holds a clear edge on every meaningful shared measure.