Bartolo Colon vs. Carson Spiers — Career Comparison

On the career pitching numbers, Bartolo Colon posted a stronger line than Carson Spiers. Bartolo Colon posted stronger numbers in ERA (4.12 vs 5.69) and WHIP (1.325 vs 1.573). By the career numbers, Bartolo Colon 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.