Junior Guerra vs. Bill Upham — Career Comparison

On the career pitching numbers, Bill Upham posted a stronger line than Junior Guerra. Bill Upham posted stronger numbers in ERA (3.37 vs 4.06) and home runs allowed (0.13 per nine innings vs 1.17). By the career numbers, Bill Upham 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.