John Perkovich vs. Juan Pizarro — Career Comparison

Juan Pizarro built a career as a starting pitcher and John Perkovich as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Juan Pizarro posted stronger surface numbers — ERA 3.43 and WHIP 1.358 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Juan Pizarro had the better of this cross-role comparison — though era context would sharpen the verdict.