John Firth vs. Chia-Jen Lo — Career Comparison

Looking at the career totals, John Firth and Chia-Jen Lo are fairly close on the surface numbers. Chia-Jen Lo posted stronger numbers in ERA (4.19 vs 8) and WHIP (1.397 vs 2.111). John Firth had the advantage in home runs allowed (0 per nine innings vs 0.93). By the career numbers, Chia-Jen Lo 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.