Jason Anderson vs. John Johnstone — Career Comparison

On the career pitching numbers, John Johnstone posted a stronger line than Jason Anderson. John Johnstone posted stronger numbers in ERA (4.01 vs 6.39) and WHIP (1.455 vs 1.974). By the career numbers, John Johnstone 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.