Boone Logan vs. Ernie Manning — Career Comparison

On the career pitching numbers, Ernie Manning posted a stronger line than Boone Logan. Ernie Manning posted stronger numbers in ERA (3.6 vs 4.5) and WHIP (1.400 vs 1.550). By the career numbers, Ernie Manning 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.