John Allen vs. Agustin Montero — Career Comparison

Looking at the career totals, John Allen and Agustin Montero are fairly close on the surface numbers. Agustin Montero posted stronger numbers in ERA (5.14 vs 18) and WHIP (1.214 vs 2.000). John Allen had the advantage in home runs allowed (0 per nine innings vs 1.93). By the career numbers, Agustin Montero 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.