Hayden Birdsong vs. Shairon Martis — Career Comparison

Looking at the career totals, Hayden Birdsong and Shairon Martis are fairly close on the surface numbers. Hayden Birdsong had the edge in ERA (4.77 vs 5.35). By the career numbers, Hayden Birdsong 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.