John Firth vs. John Russ — Career Comparison

On the career pitching numbers, John Russ posted a stronger line than John Firth. John Russ posted stronger numbers in ERA (3 vs 8) and WHIP (1.333 vs 2.111). By the career numbers, John Russ 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.