Charlie Butler vs. Boone Logan — Career Comparison

Looking at the career totals, Charlie Butler and Boone Logan are fairly close on the surface numbers. Boone Logan posted stronger numbers in ERA (4.5 vs 9) and WHIP (1.550 vs 3.000). Charlie Butler had the advantage in home runs allowed (0 per nine innings vs 1.12). 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.