Frank Stewart vs. Erik Swanson — Career Comparison

On the career pitching numbers, Frank Stewart posted a stronger line than Erik Swanson. Frank Stewart posted stronger numbers in ERA (2.45 vs 4.2) and WHIP (1.091 vs 1.154). By the career numbers, Frank Stewart 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.