Spencer Bivens vs. William Emmerich — Career Comparison

Looking at the career totals, Spencer Bivens and William Emmerich are fairly close on the surface numbers. Spencer Bivens posted stronger numbers in ERA (3.68 vs 4.85) and WHIP (1.296 vs 1.442). William Emmerich had the advantage in home runs allowed (0.78 per nine innings vs 1.04). By the career numbers, Spencer Bivens 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.