Jack Dreyer vs. Len Perme — Career Comparison

Looking at the career totals, Jack Dreyer and Len Perme are fairly close on the surface numbers. Jack Dreyer posted stronger numbers in ERA (2.95 vs 3.12) and WHIP (1.114 vs 1.269). Len Perme had the advantage in home runs allowed (0 per nine innings vs 0.47). By the career numbers, Jack Dreyer 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.