Don Dennis vs. Thomas Hatch — Career Comparison

On the career pitching numbers, Don Dennis posted a stronger line than Thomas Hatch. Don Dennis posted stronger numbers in ERA (3.69 vs 5.24) and WHIP (1.517 vs 1.621). By the career numbers, Don Dennis 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.