Roberto Duran vs. John Pyecha — Career Comparison

On the career pitching numbers, Roberto Duran posted a stronger line than John Pyecha. Roberto Duran posted stronger numbers in ERA (6.58 vs 10.13) and WHIP (1.846 vs 2.250). By the career numbers, Roberto Duran had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.