Roberto Duran vs. Jim Mains — Career Comparison

Jim Mains 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. Jim Mains posted stronger surface numbers — ERA 5.63 and WHIP 1.500 compared to 6.58 and 1.846 for Roberto Duran. By the career numbers, Jim Mains had the better of this cross-role comparison — though era context would sharpen the verdict.