Bill Risley vs. Zack Weiss — Career Comparison

On the career pitching numbers, Bill Risley posted a stronger line than Zack Weiss. Bill Risley posted stronger numbers in ERA (3.98 vs 4.61) and home runs allowed (1.26 per nine innings vs 2.63). By the career numbers, Bill Risley 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.