Raúl Álvarez vs. George Mack — Career Comparison

On the career pitching numbers, Raúl Álvarez posted a stronger line than George Mack. Raúl Álvarez posted stronger numbers in ERA (5.89 vs 7.19) and WHIP (1.562 vs 1.890). By the career numbers, Raúl Álvarez 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.