William Parson vs. Jim Sullivan — Career Comparison

On the career pitching numbers, Jim Sullivan posted a stronger line than William Parson. Jim Sullivan posted stronger numbers in ERA (4.5 vs 4.92) and WHIP (1.541 vs 1.856). By the career numbers, Jim Sullivan 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.