Kurt Birkins vs. Bill Spanswick — Career Comparison

On the career pitching numbers, Kurt Birkins posted a stronger line than Bill Spanswick. Kurt Birkins posted stronger numbers in ERA (5.85 vs 6.89) and WHIP (1.553 vs 1.837). By the career numbers, Kurt Birkins 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.