Sammy Peralta vs. Mike Rochford — Career Comparison

On the career pitching numbers, Sammy Peralta posted a stronger line than Mike Rochford. Sammy Peralta posted stronger numbers in ERA (5.12 vs 9.58) and WHIP (1.774 vs 2.710). 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.