Don Aase vs. Hipolito Peña — Career Comparison

On the career pitching numbers, Don Aase posted a stronger line than Hipolito Peña. Don Aase posted stronger numbers in ERA (3.8 vs 4.84) and WHIP (1.431 vs 1.572). By the career numbers, Don Aase 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.