Dick Robertson vs. Lawrence Simpson — Career Comparison

On the career pitching numbers, Dick Robertson posted a stronger line than Lawrence Simpson. Dick Robertson posted stronger numbers in ERA (2.89 vs 4.3) and home runs allowed (0.07 per nine innings vs 0.77). By the career numbers, Dick Robertson 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.