Antonio Alfonseca vs. Tony Arnold — Career Comparison

On the career pitching numbers, Antonio Alfonseca posted a stronger line than Tony Arnold. Antonio Alfonseca posted stronger numbers in ERA (4.11 vs 5.06) and WHIP (1.586 vs 1.685). By the career numbers, Antonio Alfonseca 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.