Zack Weiss vs. John Wetteland — Career Comparison

On the career pitching numbers, John Wetteland posted a stronger line than Zack Weiss. John Wetteland posted stronger numbers in ERA (2.93 vs 4.61) and WHIP (1.174 vs 1.280). By the career numbers, John Wetteland 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.