Grant Hartwig vs. Don Heinkel — Career Comparison

Looking at the career totals, Grant Hartwig and Don Heinkel are fairly close on the surface numbers. Don Heinkel had the edge in ERA (4.74 vs 5.14). By the career numbers, Don Heinkel 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.