Earl Francis vs. George Mack — Career Comparison

On the career pitching numbers, Earl Francis posted a stronger line than George Mack. Earl Francis posted stronger numbers in ERA (3.77 vs 7.19) and WHIP (1.501 vs 1.890). By the career numbers, Earl Francis 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.