Sammy Peralta vs. Donn Roach — Career Comparison

Looking at the career totals, Sammy Peralta and Donn Roach are fairly close on the surface numbers. Sammy Peralta had the edge in ERA (5.12 vs 5.77). 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.