Raleigh Aitchison vs. Paul Penson — Career Comparison

On the career pitching numbers, Raleigh Aitchison posted a stronger line than Paul Penson. Raleigh Aitchison posted stronger numbers in ERA (3.01 vs 4.5) and WHIP (1.260 vs 1.750). By the career numbers, Raleigh Aitchison 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.