Al Osuna vs. Jim Peterson — Career Comparison

On the career pitching numbers, Al Osuna posted a stronger line than Jim Peterson. Al Osuna posted stronger numbers in ERA (3.83 vs 5.27) and WHIP (1.448 vs 1.665). By the career numbers, Al Osuna 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.