Boof Bonser vs. Horacio Estrada — Career Comparison

On the career pitching numbers, Boof Bonser posted a stronger line than Horacio Estrada. Boof Bonser posted stronger numbers in ERA (5.18 vs 7.5) and WHIP (1.471 vs 2.139). By the career numbers, Boof Bonser 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.