Rogelio Armenteros vs. Zac Gallen — Career Comparison

Looking at the career totals, Rogelio Armenteros and Zac Gallen are fairly close on the surface numbers. Zac Gallen posted stronger numbers in ERA (3.58 vs 4) and WHIP (1.161 vs 1.222). Rogelio Armenteros had the advantage in home runs allowed (0.5 per nine innings vs 1.05). By the career numbers, Zac Gallen 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.