Don Carlsen vs. Tommy Thompson — Career Comparison

On the career pitching numbers, Tommy Thompson posted a stronger line than Don Carlsen. Tommy Thompson posted stronger numbers in WHIP (1.714 vs 1.778) and home runs allowed (0 per nine innings vs 0.83). By the career numbers, Tommy Thompson 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.