Tommy Doyle vs. Oliver Perez — Career Comparison

Oliver Perez built a career as a starting pitcher and Tommy Doyle as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Oliver Perez posted stronger surface numbers — ERA 4.37 and WHIP 1.459 compared to 8.31 and 1.769 for Tommy Doyle. By the career numbers, Oliver Perez had the better of this cross-role comparison — though era context would sharpen the verdict.