Dutch Lieber vs. Ethan Roberts — Career Comparison

On the career pitching numbers, Dutch Lieber posted a stronger line than Ethan Roberts. Dutch Lieber posted stronger numbers in ERA (4.01 vs 4.98) and WHIP (1.491 vs 1.592). By the career numbers, Dutch Lieber 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.