Willie Collazo vs. Javier Lopez — Career Comparison

Looking at the career totals, Willie Collazo and Javier Lopez are fairly close on the surface numbers. Javier Lopez posted stronger numbers in ERA (3.48 vs 6.35) and WHIP (1.419 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 0.44). By the career numbers, Javier Lopez 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.