Troy Mattes vs. David Williams — Career Comparison

On the career pitching numbers, David Williams posted a stronger line than Troy Mattes. David Williams posted stronger numbers in ERA (4.83 vs 6) and WHIP (1.449 vs 1.644). By the career numbers, David 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.