Roberto Duran vs. Al Mamaux — Career Comparison

Al Mamaux 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. Al Mamaux posted stronger surface numbers — ERA 2.9 and WHIP 1.275 compared to 6.58 and 1.846 for Roberto Duran. By the career numbers, Al Mamaux had the better of this cross-role comparison — though era context would sharpen the verdict.