Mel Bosser vs. Zac Rosscup — Career Comparison

On the career pitching numbers, Mel Bosser posted a stronger line than Zac Rosscup. Mel Bosser posted stronger numbers in ERA (3.38 vs 5.09) and home runs allowed (0 per nine innings vs 1.66). By the career numbers, Mel Bosser 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.