Tom Butters vs. Keith Comstock — Career Comparison

On the career pitching numbers, Tom Butters posted a stronger line than Keith Comstock. Tom Butters posted stronger numbers in ERA (3.1 vs 4.06) and home runs allowed (0.56 per nine innings vs 0.82). By the career numbers, Tom Butters 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.