Ralph Erickson vs. Seth Rosin — Career Comparison

On the career pitching numbers, Ralph Erickson posted a stronger line than Seth Rosin. Ralph Erickson posted stronger numbers in ERA (8.4 vs 12) and WHIP (2.333 vs 2.500). By the career numbers, Ralph Erickson 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.