Willie Collazo vs. Carroll Sembera — Career Comparison

Looking at the career totals, Willie Collazo and Carroll Sembera are fairly close on the surface numbers. Carroll Sembera posted stronger numbers in ERA (4.7 vs 6.35) and WHIP (1.668 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 0.84). By the career numbers, Carroll Sembera 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.