Willie Collazo vs. Dan Spillner — Career Comparison

Looking at the career totals, Willie Collazo and Dan Spillner are fairly close on the surface numbers. Dan Spillner posted stronger numbers in ERA (4.21 vs 6.35) and WHIP (1.511 vs 2.294). Willie Collazo had the advantage in home runs allowed (0 per nine innings vs 0.81). By the career numbers, Dan Spillner 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.