John Firth vs. Tony Zych — Career Comparison

Looking at the career totals, John Firth and Tony Zych are fairly close on the surface numbers. Tony Zych posted stronger numbers in ERA (2.72 vs 8) and WHIP (1.321 vs 2.111). John Firth had the advantage in home runs allowed (0 per nine innings vs 0.37). By the career numbers, Tony Zych 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.