Ralph Caldwell vs. Juan Nieves — Career Comparison

On the career pitching numbers, Ralph Caldwell posted a stronger line than Juan Nieves. Ralph Caldwell posted stronger numbers in ERA (4.2 vs 4.71) and WHIP (1.413 vs 1.514). By the career numbers, Ralph Caldwell 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.