Roberto Duran vs. Jeff Peterek — Career Comparison

Jeff Peterek built a career as a starting pitcher and Roberto Duran as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeff Peterek posted stronger surface numbers — ERA 4.02 and WHIP 1.468 compared to 6.58 and 1.846 for Roberto Duran. By the career numbers, Jeff Peterek had the better of this cross-role comparison — though era context would sharpen the verdict.