Bill Leith vs. Zach McClellan — Career Comparison

On the career pitching numbers, Zach McClellan posted a stronger line than Bill Leith. Zach McClellan posted stronger numbers in ERA (5.79 vs 18) and WHIP (1.929 vs 3.000). By the career numbers, Zach McClellan 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.