Willie Collazo vs. Reiver Sanmartin — Career Comparison

Looking at the career totals, Willie Collazo and Reiver Sanmartin are fairly close on the surface numbers. Reiver Sanmartin posted stronger numbers in ERA (5.66 vs 6.35) and WHIP (1.684 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 1.07). By the career numbers, Reiver Sanmartin 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.