Alfredo Aceves vs. John Firth — Career Comparison

Looking at the career totals, Alfredo Aceves and John Firth are fairly close on the surface numbers. Alfredo Aceves posted stronger numbers in ERA (3.83 vs 8) and WHIP (1.230 vs 2.111). John Firth had the advantage in home runs allowed (0 per nine innings vs 1.14). By the career numbers, Alfredo Aceves 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.