Max Castillo vs. John O'Donoghue — Career Comparison

On the career pitching numbers, John O'Donoghue posted a stronger line than Max Castillo. John O'Donoghue posted stronger numbers in ERA (4.07 vs 5.43) and home runs allowed (0.93 per nine innings vs 1.51). By the career numbers, John O'Donoghue 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.