Willie Collazo vs. Scott Service — Career Comparison

Looking at the career totals, Willie Collazo and Scott Service are fairly close on the surface numbers. Scott Service posted stronger numbers in ERA (4.99 vs 6.35) and WHIP (1.549 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 1.21). By the career numbers, Scott Service 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.