Clifford Allen vs. Hayden Birdsong — Career Comparison

Looking at the career totals, Clifford Allen and Hayden Birdsong are fairly close on the surface numbers. Hayden Birdsong posted stronger numbers in ERA (4.77 vs 9.47) and WHIP (1.438 vs 2.474). Clifford Allen had the advantage in home runs allowed (0 per nine innings vs 1.37). 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.