Diego Castillo vs. Michael Roth — Career Comparison

On the career pitching numbers, Diego Castillo posted a stronger line than Michael Roth. Diego Castillo posted stronger numbers in ERA (3.2 vs 8.5) and WHIP (1.153 vs 1.889). By the career numbers, Diego Castillo 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.