Spencer Bivens vs. Duane Theiss — Career Comparison

Looking at the career totals, Spencer Bivens and Duane Theiss are fairly close on the surface numbers. Spencer Bivens posted stronger numbers in ERA (3.68 vs 5.33) and WHIP (1.296 vs 1.963). Duane Theiss had the advantage in home runs allowed (0.33 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.