Jeff Parrett vs. Sammy Peralta — Career Comparison

On the career pitching numbers, Jeff Parrett posted a stronger line than Sammy Peralta. Jeff Parrett posted stronger numbers in ERA (3.8 vs 5.12) and WHIP (1.485 vs 1.774). By the career numbers, Jeff Parrett 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.