Kevin Appier vs. Rogelio Armenteros — Career Comparison

Looking at the career totals, Kevin Appier and Rogelio Armenteros are fairly close on the surface numbers. Rogelio Armenteros posted stronger numbers in WHIP (1.222 vs 1.314) and home runs allowed (0.5 per nine innings vs 0.8). Kevin Appier had the advantage in ERA (3.74 vs 4). By the career numbers, Rogelio Armenteros 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.