Hayden Birdsong vs. Unknown Murray — Career Comparison

On the career pitching numbers, Unknown Murray posted a stronger line than Hayden Birdsong. Unknown Murray posted stronger numbers in ERA (4.5 vs 4.77) and WHIP (1.000 vs 1.438). By the career numbers, Unknown Murray 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.