Willie Collazo vs. Bill Kelso — Career Comparison

Looking at the career totals, Willie Collazo and Bill Kelso are fairly close on the surface numbers. Bill Kelso posted stronger numbers in ERA (3.13 vs 6.35) and WHIP (1.393 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 0.72). By the career numbers, Bill Kelso 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.