Hayden Birdsong vs. Larry Dierker — Career Comparison

On the career pitching numbers, Larry Dierker posted a stronger line than Hayden Birdsong. Larry Dierker posted stronger numbers in ERA (3.31 vs 4.77) and WHIP (1.236 vs 1.438). By the career numbers, Larry Dierker 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.