Troy Mattes vs. Roy S. Williams — Career Comparison

On the career pitching numbers, Roy S. Williams posted a stronger line than Troy Mattes. Roy S. Williams posted stronger numbers in ERA (5.69 vs 6) and WHIP (1.571 vs 1.644). By the career numbers, Roy S. Williams 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.