Kevin Appier vs. Andy Boswell — Career Comparison

Kevin Appier built a career as a starting pitcher and Andy Boswell as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kevin Appier posted stronger surface numbers — ERA 3.74 and WHIP 1.314 compared to 5.91 and 1.969 for Andy Boswell. By the career numbers, Kevin Appier had the better of this cross-role comparison — though era context would sharpen the verdict.