Chris Michalak vs. Williams Perez — Career Comparison

Looking at the career totals, Chris Michalak and Williams Perez are fairly close on the surface numbers. Williams Perez posted stronger numbers in WHIP (1.515 vs 1.683) and home runs allowed (1.06 per nine innings vs 1.27). Chris Michalak had the advantage in ERA (4.7 vs 5.18). By the career numbers, Williams Perez 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.