John Firth vs. Danny Leon — Career Comparison

Looking at the career totals, John Firth and Danny Leon are fairly close on the surface numbers. Danny Leon posted stronger numbers in ERA (5.89 vs 8) and WHIP (1.527 vs 2.111). John Firth had the advantage in home runs allowed (0 per nine innings vs 2.45). By the career numbers, Danny Leon 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.