Seunghwan Oh vs. John Perkovich — Career Comparison

On the career pitching numbers, Seunghwan Oh posted a stronger line than John Perkovich. Seunghwan Oh posted stronger numbers in ERA (3.31 vs 7.2) and WHIP (1.210 vs 1.600). By the career numbers, Seunghwan Oh 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.