Donnie Hart vs. Al Mahon — Career Comparison

Looking at the career totals, Donnie Hart and Al Mahon are fairly close on the surface numbers. Donnie Hart posted stronger numbers in ERA (3.13 vs 22.85) and WHIP (1.483 vs 4.154). Al Mahon had the advantage in home runs allowed (0 per nine innings vs 0.81). By the career numbers, Donnie Hart 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.