Kyle Nelson vs. Zack Weiss — Career Comparison

On the career pitching numbers, Kyle Nelson posted a stronger line than Zack Weiss. Kyle Nelson posted stronger numbers in ERA (4.34 vs 4.61) and home runs allowed (1.32 per nine innings vs 2.63). By the career numbers, Kyle Nelson 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.