Boof Bonser vs. Mitch Spence — Career Comparison

On the career pitching numbers, Mitch Spence posted a stronger line than Boof Bonser. Mitch Spence posted stronger numbers in ERA (4.77 vs 5.18) and WHIP (1.411 vs 1.471). By the career numbers, Mitch Spence 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.