Speed Haywood vs. Bob Heffner — Career Comparison

Looking at the career totals, Speed Haywood and Bob Heffner are fairly close on the surface numbers. Bob Heffner posted stronger numbers in ERA (4.51 vs 9.32) and WHIP (1.347 vs 2.125). Speed Haywood had the advantage in home runs allowed (0.32 per nine innings vs 1.15). By the career numbers, Bob Heffner 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.