Jeremy Jeffress vs. Jack Killilay — Career Comparison

Jack Killilay built a career as a starting pitcher and Jeremy Jeffress as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeremy Jeffress posted stronger surface numbers — ERA 3.08 and WHIP 1.372 compared to 3.54 and 1.656 for Jack Killilay. By the career numbers, Jeremy Jeffress had the better of this cross-role comparison — though era context would sharpen the verdict.