Walter Anderson vs. Jack O'Connor — Career Comparison

On the career pitching numbers, Walter Anderson posted a stronger line than Jack O'Connor. Walter Anderson posted stronger numbers in ERA (3.25 vs 4.89) and WHIP (1.405 vs 1.657). By the career numbers, Walter Anderson 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.