Jack Killilay vs. Joel Zumaya — Career Comparison

Jack Killilay built a career as a starting pitcher and Joel Zumaya as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Joel Zumaya posted stronger surface numbers — ERA 3.05 and WHIP 1.402 compared to 3.54 and 1.656 for Jack Killilay. By the career numbers, Joel Zumaya had the better of this cross-role comparison — though era context would sharpen the verdict.