Andy Boswell vs. Tyler Duffey — Career Comparison

Looking at the career totals, Andy Boswell and Tyler Duffey are fairly close on the surface numbers. Tyler Duffey posted stronger numbers in ERA (4.57 vs 5.91) and WHIP (1.321 vs 1.969). Andy Boswell had the advantage in home runs allowed (0.28 per nine innings vs 1.24). By the career numbers, Tyler Duffey 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.