Bobby Ayala vs. Allan Simpson — Career Comparison

On the career pitching numbers, Bobby Ayala posted a stronger line than Allan Simpson. Bobby Ayala posted stronger numbers in ERA (4.78 vs 6.06) and WHIP (1.472 vs 1.694). By the career numbers, Bobby Ayala 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.