Keith Comstock vs. Grant Roberts — Career Comparison

On the career pitching numbers, Keith Comstock posted a stronger line than Grant Roberts. Keith Comstock posted stronger numbers in ERA (4.06 vs 4.25) and WHIP (1.451 vs 1.515). By the career numbers, Keith Comstock 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.