John Firth vs. C. J. Nitkowski — Career Comparison

Looking at the career totals, John Firth and C. J. Nitkowski are fairly close on the surface numbers. C. J. Nitkowski posted stronger numbers in ERA (5.37 vs 8) and WHIP (1.676 vs 2.111). John Firth had the advantage in home runs allowed (0 per nine innings vs 1.07). By the career numbers, C. J. Nitkowski 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.