Lee Guetterman vs. Ethan Roberts — Career Comparison

On the career pitching numbers, Lee Guetterman posted a stronger line than Ethan Roberts. Lee Guetterman posted stronger numbers in ERA (4.33 vs 4.98) and WHIP (1.489 vs 1.592). By the career numbers, Lee Guetterman 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.