Fabio Castillo vs. Scott Patterson — Career Comparison

On the career pitching numbers, Scott Patterson posted a stronger line than Fabio Castillo. Scott Patterson posted stronger numbers in ERA (1.93 vs 13.5) and WHIP (1.929 vs 3.000). By the career numbers, Scott Patterson 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.