Antonio Alfonseca vs. Michael Kohn — Career Comparison

Looking at the career totals, Antonio Alfonseca and Michael Kohn are fairly close on the surface numbers. Michael Kohn posted stronger numbers in ERA (3.52 vs 4.11) and WHIP (1.461 vs 1.586). Antonio Alfonseca had the advantage in home runs allowed (0.81 per nine innings vs 1.1). By the career numbers, Michael Kohn 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.