Dave Johnson vs. Ethan Roberts — Career Comparison

On the career pitching numbers, Dave Johnson posted a stronger line than Ethan Roberts. Dave Johnson posted stronger numbers in ERA (4.64 vs 4.98) and home runs allowed (0.75 per nine innings vs 1.87). By the career numbers, Dave Johnson 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.