William Sheppard vs. John Smoltz — Career Comparison

On the career pitching numbers, William Sheppard posted a stronger line than John Smoltz. William Sheppard posted stronger numbers in ERA (2.9 vs 3.33) and home runs allowed (0.29 per nine innings vs 0.75). By the career numbers, William Sheppard 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.