Daisuke Matsuzaka vs. Ryan O'Rourke — Career Comparison

Daisuke Matsuzaka built a career as a starting pitcher and Ryan O'Rourke as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Daisuke Matsuzaka posted stronger surface numbers — ERA 4.45 and WHIP 1.413 compared to 4.84 and 1.324 for Ryan O'Rourke. By the career numbers, Daisuke Matsuzaka had the better of this cross-role comparison — though era context would sharpen the verdict.