Justin Atchley vs. John Purdin — Career Comparison

On the career pitching numbers, John Purdin posted a stronger line than Justin Atchley. John Purdin posted stronger numbers in ERA (3.9 vs 6.1) and WHIP (1.410 vs 1.839). By the career numbers, John Purdin 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.