Bill Day vs. Andy Sonnanstine — Career Comparison

Andy Sonnanstine built a career as a starting pitcher and Bill Day as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Bill Day posted stronger surface numbers — ERA 4.66 and WHIP 1.802 compared to 5.26 and 1.414 for Andy Sonnanstine. By the career numbers, Bill Day had the better of this cross-role comparison — though era context would sharpen the verdict.