Antonio Alfonseca vs. Dave Johnson — Career Comparison

Looking at the career totals, Antonio Alfonseca and Dave Johnson are fairly close on the surface numbers. Antonio Alfonseca had the edge in ERA (4.11 vs 4.64). 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.