Bob Allen vs. Steven Register — Career Comparison

On the career pitching numbers, Bob Allen posted a stronger line than Steven Register. Bob Allen posted stronger numbers in ERA (4.11 vs 8.25) and WHIP (1.631 vs 2.000). By the career numbers, Bob 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.