Herbert Brett vs. Charlie Kerfeld — Career Comparison

On the career pitching numbers, Herbert Brett posted a stronger line than Charlie Kerfeld. Herbert Brett posted stronger numbers in ERA (3.97 vs 4.2) and WHIP (1.235 vs 1.572). By the career numbers, Herbert Brett 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.