John Poloni vs. Robbie Ray — Career Comparison

Looking at the career totals, John Poloni and Robbie Ray are fairly close on the surface numbers. Robbie Ray had the edge in ERA (3.94 vs 6.43). By the career numbers, Robbie Ray 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.