Kolby Allard vs. Zack Spencer — Career Comparison

Looking at the career totals, Kolby Allard and Zack Spencer are fairly close on the surface numbers. Kolby Allard posted stronger numbers in ERA (5.34 vs 7.04) and WHIP (1.409 vs 1.565). Zack Spencer had the advantage in home runs allowed (0 per nine innings vs 1.6). By the career numbers, Kolby Allard 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.