Bob Heffner vs. Waite Hoyt — Career Comparison

On the career pitching numbers, Waite Hoyt posted a stronger line than Bob Heffner. Waite Hoyt posted stronger numbers in ERA (3.59 vs 4.51) and home runs allowed (0.37 per nine innings vs 1.15). By the career numbers, Waite Hoyt 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.