Roberto Duran vs. Juan Marichal — Career Comparison

Juan Marichal 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. Juan Marichal posted stronger surface numbers — ERA 2.89 and WHIP 1.125 compared to 6.58 and 1.846 for Roberto Duran. By the career numbers, Juan Marichal had the better of this cross-role comparison — though era context would sharpen the verdict.