Don McMahon vs. Ryan O'Rourke — Career Comparison

On the career pitching numbers, Don McMahon posted a stronger line than Ryan O'Rourke. Don McMahon posted stronger numbers in ERA (2.96 vs 4.84) and home runs allowed (0.72 per nine innings vs 1.12). By the career numbers, Don McMahon 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.