Jimmy Key vs. Carson Spiers — Career Comparison

On the career pitching numbers, Jimmy Key posted a stronger line than Carson Spiers. Jimmy Key posted stronger numbers in ERA (3.51 vs 5.69) and WHIP (1.241 vs 1.573). By the career numbers, Jimmy Key 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.