Oliver Perez vs. Billy Rhines — Career Comparison

Oliver Perez built a career as a starting pitcher and Billy Rhines as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Billy Rhines posted stronger surface numbers — ERA 3.48 and WHIP 1.342 compared to 4.37 and 1.459 for Oliver Perez. By the career numbers, Billy Rhines had the better of this cross-role comparison — though era context would sharpen the verdict.