Antonio Alfonseca vs. Andy Sonnanstine — Career Comparison

Andy Sonnanstine built a career as a starting pitcher and Antonio Alfonseca as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Andy Sonnanstine led in walk avoidance (BB%+ 172 vs 108), strikeout rate (K%+ 101 vs 81), and skill-based run prevention (DICE+ 109 vs 98). Antonio Alfonseca held the edge in home run suppression (HR9+ 126 vs 96). Keeping the role difference in mind, the edge still goes to Andy Sonnanstine.