Roberto Duran vs. Ron Mrozinski — Career Comparison

Looking at the career totals, Roberto Duran and Ron Mrozinski are fairly close on the surface numbers. Ron Mrozinski posted stronger numbers in ERA (5.36 vs 6.58) and WHIP (1.615 vs 1.846). Roberto Duran had the advantage in home runs allowed (0 per nine innings vs 1.31). By the career numbers, Ron Mrozinski 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.