Hayden Birdsong vs. Tom Cheney — Career Comparison

On the career pitching numbers, Tom Cheney posted a stronger line than Hayden Birdsong. Tom Cheney posted stronger numbers in ERA (3.77 vs 4.77) and WHIP (1.358 vs 1.438). By the career numbers, Tom Cheney 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.