Barret Browning vs. Adam Butler — Career Comparison

On the career pitching numbers, Barret Browning posted a stronger line than Adam Butler. Barret Browning posted stronger numbers in ERA (5.12 vs 10.8) and WHIP (1.293 vs 2.400). By the career numbers, Barret Browning 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.