John Allen vs. Sammy Peralta — Career Comparison

Looking at the career totals, John Allen and Sammy Peralta are fairly close on the surface numbers. Sammy Peralta posted stronger numbers in ERA (5.12 vs 18) and WHIP (1.774 vs 2.000). John Allen had the advantage in home runs allowed (0 per nine innings vs 0.79). By the career numbers, Sammy Peralta 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.