John Duffie vs. Beiker Graterol — Career Comparison

On the career pitching numbers, John Duffie posted a stronger line than Beiker Graterol. John Duffie posted stronger numbers in ERA (2.79 vs 15.75) and WHIP (1.655 vs 2.250). By the career numbers, John Duffie 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.