Al Atkinson vs. Jack O'Connor — Career Comparison

On the career pitching numbers, Al Atkinson posted a stronger line than Jack O'Connor. Al Atkinson posted stronger numbers in ERA (3.96 vs 4.89) and WHIP (1.259 vs 1.657). By the career numbers, Al Atkinson 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.