Frank Allen vs. Rogelio Armenteros — Career Comparison

Looking at the career totals, Frank Allen and Rogelio Armenteros are fairly close on the surface numbers. Frank Allen posted stronger numbers in ERA (2.93 vs 4) and home runs allowed (0.24 per nine innings vs 0.5). Rogelio Armenteros had the advantage in WHIP (1.222 vs 1.305). By the career numbers, Frank Allen 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.