Earl Jones vs. Jack O'Connor — Career Comparison

On the career pitching numbers, Earl Jones posted a stronger line than Jack O'Connor. Earl Jones posted stronger numbers in ERA (2.54 vs 4.89) and WHIP (1.271 vs 1.657). By the career numbers, Earl Jones 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.