Frank Allen vs. Rich Robertson — Career Comparison

On the career pitching numbers, Frank Allen posted a stronger line than Rich Robertson. Frank Allen posted stronger numbers in ERA (2.93 vs 4.94) and WHIP (1.305 vs 1.631). By the career numbers, Frank Allen 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.