Bob Ayrault vs. Kurt Birkins — Career Comparison

On the career pitching numbers, Bob Ayrault posted a stronger line than Kurt Birkins. Bob Ayrault posted stronger numbers in ERA (4.05 vs 5.85) and WHIP (1.418 vs 1.553). By the career numbers, Bob Ayrault 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.