Dave Geisel vs. Ethan Roberts — Career Comparison

On the career pitching numbers, Dave Geisel posted a stronger line than Ethan Roberts. Dave Geisel posted stronger numbers in ERA (4.01 vs 4.98) and home runs allowed (0.65 per nine innings vs 1.87). By the career numbers, Dave Geisel 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.