Ronny Miller vs. Jack O'Connor — Career Comparison

On the career pitching numbers, Ronny Miller posted a stronger line than Jack O'Connor. Ronny Miller posted stronger numbers in ERA (4.5 vs 4.89) and WHIP (1.500 vs 1.657). By the career numbers, Ronny Miller 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.