Zach Day vs. Colin Selby — Career Comparison

Zach Day built a career as a starting pitcher and Colin Selby as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Zach Day posted stronger surface numbers — ERA 4.66 and WHIP 1.554 compared to 6.2 and 1.556 for Colin Selby. By the career numbers, Zach Day had the better of this cross-role comparison — though era context would sharpen the verdict.