John Allen vs. Aaron Loup — Career Comparison

Looking at the career totals, John Allen and Aaron Loup are fairly close on the surface numbers. Aaron Loup posted stronger numbers in ERA (3.43 vs 18) and WHIP (1.299 vs 2.000). John Allen had the advantage in home runs allowed (0 per nine innings vs 0.68). By the career numbers, Aaron Loup 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.