John Gibbons vs. Roric Harrison — Career Comparison

Looking at the career totals, John Gibbons and Roric Harrison are fairly close on the surface numbers. John Gibbons had the edge in home runs allowed (0.29 per nine innings vs 0.69). By the career numbers, John Gibbons 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.