Kurt Birkins vs. Elmer Singleton — Career Comparison

On the career pitching numbers, Elmer Singleton posted a stronger line than Kurt Birkins. Elmer Singleton posted stronger numbers in ERA (4.83 vs 5.85) and WHIP (1.437 vs 1.553). By the career numbers, Elmer Singleton 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.