Bob Grim vs. Jack O'Connor — Career Comparison

On the career pitching numbers, Bob Grim posted a stronger line than Jack O'Connor. Bob Grim posted stronger numbers in ERA (3.61 vs 4.89) and WHIP (1.395 vs 1.657). By the career numbers, Bob Grim 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.