Boone Logan vs. Ethan Roberts — Career Comparison

On the career pitching numbers, Boone Logan posted a stronger line than Ethan Roberts. Boone Logan posted stronger numbers in ERA (4.5 vs 4.98) and home runs allowed (1.12 per nine innings vs 1.87). By the career numbers, Boone Logan 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.