Jack Morris vs. John Poloni — Career Comparison

On the career pitching numbers, Jack Morris posted a stronger line than John Poloni. Jack Morris posted stronger numbers in ERA (3.9 vs 6.43) and home runs allowed (0.92 per nine innings vs 1.29). By the career numbers, Jack Morris 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.