Unknown Allison vs. Luis Perdomo — Career Comparison

On the career pitching numbers, Unknown Allison posted a stronger line than Luis Perdomo. Unknown Allison posted stronger numbers in ERA (3 vs 5.12) and WHIP (1.444 vs 1.526). By the career numbers, Unknown Allison 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.