Charlie Butler vs. Ethan Roberts — Career Comparison

Looking at the career totals, Charlie Butler and Ethan Roberts are fairly close on the surface numbers. Ethan Roberts posted stronger numbers in ERA (4.98 vs 9) and WHIP (1.592 vs 3.000). Charlie Butler had the advantage in home runs allowed (0 per nine innings vs 1.87). By the career numbers, Ethan Roberts 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.