Jeff Richardson vs. Mauro Zarate — Career Comparison

Looking at the career totals, Jeff Richardson and Mauro Zarate are fairly close on the surface numbers. Jeff Richardson posted stronger numbers in ERA (0 vs 10.8) and home runs allowed (0 per nine innings vs 5.4). Mauro Zarate had the advantage in WHIP (2.400 vs 3.000). By the career numbers, Jeff Richardson 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.